Guide May 2026 · 13 min read

Cortisone: myths and facts — what is really behind it

Hardly any medication has such an ambivalent reputation as cortisone. For some it is a miracle cure against inflammation, for others a feared "sledgehammer" with many side effects. This "cortisone fear" not infrequently leads people to use an important, often highly effective medication too little or too briefly out of worry. This guide separates myths from facts.

What this is about Clear information about cortisone (glucocorticoids): an artificial variant of the body's own hormone cortisol, strongly anti-inflammatory and immune-suppressing. The decisive difference: short vs. long use and local (cream, spray) vs. systemic (tablet, injection). Cortisone is very valuable when used correctly — the feared side effects concern above all long-term, high-dose systemic use.

1. What actually is cortisone?

"Cortisone" is the colloquial collective term for a group of medications called glucocorticoids. They are artificial variants of cortisol — a vital hormone that the body itself produces in the adrenal cortex. Cortisol controls numerous processes: the metabolism, the blood sugar, the blood pressure and above all the inflammatory and immune reactions.¹

As a medication, cortisone is used because of its strongly anti-inflammatory and immune-suppressing effect. Well-known active ingredients are prednisolone, prednisone, methylprednisolone, dexamethasone (more systemic) as well as budesonide and hydrocortisone (more local). They differ in potency and duration of action.

Cortisone is not a "poison", but a hormone close to the body's own The decisive point is the dose and duration of use — this is exactly where it is decided whether the feared side effects play a role or not.

2. How does cortisone work in the body?

Cortisone binds to special receptors in the cells and there influences the activity of numerous genes. The result is a broad, powerful damping of inflammatory and immune reactions:¹

  • Anti-inflammatory effect: cortisone throttles the production of inflammation-promoting messenger substances — swelling, redness, pain and overheating recede
  • Immune suppression: it slows excessive immune reactions — important with allergies and autoimmune diseases, in which the immune system turns against one's own body
  • A fast and strong effect: hardly any other medication acts so broadly and reliably against inflammation

Exactly this powerful effect makes cortisone so valuable — and at the same time explains the possible side effects: because cortisol has many functions in the body, a high, long intake from outside can also influence other systems (metabolism, bones, blood sugar). With short or local use, however, this influence stays small.

3. The decisive difference: local vs. systemic

One of the most important points for putting "cortisone fear" into context. It makes a huge difference whether cortisone acts in the whole body or only in a targeted way at one place:¹

Local (topical) use

Cortisone as a cream/ointment (on the skin), as a spray for inhaling (in the lungs, e.g. budesonide), as a nasal spray or eye drops acts above all where it is applied. Only a little gets into the body — the typical systemic side effects therefore hardly occur. These uses are usually very safe.

Systemic use

Cortisone as a tablet or injection/infusion acts in the whole body. Here — above all with a higher dose and longer use — the known side effects are possible. But here too it applies: a short use (e.g. a few days for an acute flare-up) is usually well tolerated.

Most "cortisone fear" applies to one quite specific situation Most cortisone fears refer — often unconsciously — to long-term, high-dose systemic use. They can hardly be transferred to a cortisone cream or an inhaled asthma spray. This distinction is the key.

4. Short vs. long use

Besides local/systemic, the duration is the second decisive factor:

  • Short-term use (days to a few weeks): e.g. a cortisone burst for an acute asthma or rheumatic flare-up. Usually well tolerated; the feared long-term consequences do not arise here
  • Long-term use (months to years, systemic): here relevant side effects can occur — they are minimized through the lowest effective dose and accompanying measures
  • The "Cushing threshold": below a certain daily dose (often named as a guide value) the risk of systemic side effects is low; above it and with long use it rises

That means: a short cortisone burst for an acute flare-up is something completely different from years of high-dose continuous therapy. Many people who fear cortisone think of the latter — although they are often only prescribed a short or local use.

5. Myth 1: "Cortisone is always dangerous"

Myth 1

"Cortisone is always dangerous."

Fact check: False

Cortisone is one of the most valuable medications in medicine and saves lives in many situations (e.g. with severe allergic reactions, acute asthma attacks, severe inflammation). The danger depends on dose, duration and form of use, not on the active ingredient itself.¹

A short or local use is usually very safe. Even with long-term therapy, in many cases the benefit clearly outweighs the risks — for example when a severe autoimmune disease would otherwise damage organs. The blanket statement "cortisone is dangerous" does not do justice to reality and can lead people to refuse an important treatment.

6. Myth 2: "You always gain weight from cortisone"

Myth 2

"You always gain weight from cortisone."

Fact check: Only partly true

Strongly dependent on dose and duration. Weight gain and the typical redistribution of body fat (e.g. into the face, "moon face") occur above all with longer, higher-dose systemic use.¹

  • Short use (a few days): as a rule no relevant weight gain
  • Local use (cream, inhalation): practically none
  • Long-term tablets in a higher dose: here increased appetite, water retention and weight gain are possible

Anyone who only uses a cortisone cream or an inhaled asthma spray need not fear weight gain. With a necessary long-term therapy, conscious diet and exercise can help to counteract a gain.

7. Myth 3: "Cortisone cream ruins the skin"

Myth 3

"Cortisone cream ruins the skin."

Fact check: Unfounded with correct use

Cortisone creams are highly effective and — used correctly — safe for skin diseases such as atopic dermatitis or eczema. Skin changes (e.g. thinning skin) occur above all with incorrect use: too long, over too large an area, too high a dose or at sensitive spots.¹

  • Used correctly (suitable potency, limited duration, according to the doctor's instructions): very well tolerated
  • Potencies are graduated — on the face and at sensitive spots weaker ones are used
  • Interval/step use: modern schemes reduce the application days and thus the risk
  • The untreated skin disease often harms the skin more than the correctly used cortisone cream

The fear of the cortisone cream ("corticophobia") often leads to it being used too sparingly or too briefly — which makes the skin disease heal worse. A sufficient, correct use according to the doctor's instructions is usually safer than a constant "back and forth".

8. Myth 4: "You can just stop cortisone"

Myth 4

"You can just stop cortisone."

Fact check: Dangerously false

At least with longer systemic use. Anyone who takes cortisone tablets over a longer time must not stop them abruptly.¹

With a short use (a few days) usually no tapering is needed. With local use (cream, inhalation) this problem does not exist as a rule. What is decisive is: a longer tablet therapy is reduced according to a doctor's plan, so that the body's own hormone production can recover again.

Danger to life with abrupt stopping of a long-term therapy With a longer systemic cortisone therapy the body throttles its own cortisol production. A sudden stop can then lead to a dangerous deficiency (adrenal insufficiency, in extreme cases a life-threatening "Addisonian crisis"). A longer cortisone therapy must therefore always be tapered slowly and with medical supervision — never stop on your own. More in the guide Stopping cortisone.

9. The real side effects — and when they occur

So that the information stays honest: cortisone has real side effects. But they concern above all the long-term, higher-dose systemic use:

  • Weight gain, fat redistribution ("moon face", central obesity)
  • Increased blood sugar (up to "steroid diabetes") — relevant above all with diabetes
  • Bone loss (osteoporosis) with long-term therapy
  • Increased blood pressure, water retention
  • Increased susceptibility to infection through the immune suppression
  • Skin changes (thinner skin, poorer wound healing)
  • Stomach complaints (above all in combination with NSAID painkillers)
  • Eye changes (cataract/glaucoma with long-term therapy)
  • Mood swings, sleep disturbances, inner restlessness
  • Suppression of the body's own cortisol production (hence the tapering)

What is decisive is the context: with short or local use these side effects hardly play a role. With a necessary long-term therapy they are minimized through accompanying measures and regular check-ups — and weighed against the often great benefit.

10. Cortisone with rheumatism and autoimmune diseases

With inflammatory rheumatic diseases (e.g. rheumatoid arthritis) and other autoimmune diseases, cortisone is a central medication — because it slows the misguided, excessive inflammation quickly and powerfully:

  • In an acute flare-up: cortisone acts quickly and can rapidly relieve strong complaints — often as a time-limited "burst"
  • As a "bridge": until slower-acting baseline medications take effect, cortisone bridges the time
  • Long-term as low as possible: in continuous therapy the lowest effective dose is aimed for; cortisone can often be reduced as soon as other medications work
  • Bone protection: with longer therapy, measures against osteoporosis are added

Without cortisone, many rheumatic flare-ups would be considerably harder to control. The art lies in using the short-term strong effect and keeping the long-term dose as low as possible — the rheumatologist steers this.

11. Cortisone with asthma and allergies

With asthma, inhaled cortisone (e.g. budesonide) is the most important continuous therapy — and a prime example of the safe, local use:

  • Inhaled cortisone acts directly in the lungs against the airway inflammation; only a little gets into the body — the systemic side effects hardly occur
  • It is a controller (a continuous medication), not an emergency spray — it must be used regularly
  • Rinse the mouth after inhaling to prevent the few local side effects (oral thrush, hoarseness)
  • With allergies: cortisone as a nasal spray (allergic rhinitis) or briefly systemic (severe allergic reactions) is very effective
  • In an emergency: with severe allergic reactions or asthma attacks, systemic cortisone can be life-saving
Leaving out inhaled cortisone out of worry — more dangerous than the side effects Especially with asthma, the cortisone fear is particularly problematic: anyone who leaves out the inhaled cortisone out of worry risks poor asthma control and dangerous attacks — although the inhaled use is very safe. More on this at budesonide and in the guide Inhaling correctly.

12. How to minimize side effects

When a cortisone therapy is necessary, the risks can be kept low with a few principles:

  • The lowest effective dose, as short as possible — the top principle.
  • Local before systemic, where possible (cream, spray instead of tablet).
  • Taking it in the morning (with tablets) — this matches the natural cortisol rhythm and reduces sleep disturbances.
  • Bone protection with long-term therapy (e.g. calcium/vitamin D on medical recommendation, exercise).
  • Check blood sugar, blood pressure and eyes with long-term therapy.
  • Stomach protection with simultaneous intake of NSAIDs.
  • Never stop abruptly — taper according to a doctor's plan.
  • Pay attention to vaccinations and infections — the immune suppression increases susceptibility to infection.
  • Carry a steroid emergency card with long-term therapy (important for emergencies and operations).

13. When cortisone is really important

To finish, the other side of the coin: there are situations in which cortisone is simply indispensable and often life-saving:

  • Severe allergic reactions (anaphylactic shock) — as an emergency medication
  • Acute, severe asthma attacks
  • Acute flare-ups of inflammatory rheumatic and autoimmune diseases
  • Severe inflammatory skin and gut diseases
  • Certain emergencies in neurology, oncology and intensive care medicine
  • Replacement therapy with adrenal insufficiency (here cortisone is vital)
Informed, responsible handling — neither blind respect nor blanket rejection In these cases the benefit far outweighs the risks. An unfounded cortisone fear can become dangerous here if it delays a necessary treatment. The right attitude is therefore neither blind respect nor blanket rejection, but an informed, responsible handling together with the doctor.

14. How brite helps you with a cortisone therapy

Depending on the form of use, cortisone requires different attention — from the punctual morning tablet intake to the structured tapering. The brite functions start exactly there:

Intake reminder

Reliably carry out cortisone tablets in the morning (according to the natural rhythm) or the inhaled/topical use.

Document the stopping/tapering plan

Accompany the step-by-step reduction with a longer therapy in a structured way — important, since abrupt stopping is dangerous.

Reminder for check-up appointments

Do not forget blood sugar, blood pressure, bone density and eye checks with long-term therapy.

Interaction check

Check e.g. NSAIDs (stomach) and other relevant combinations for free.

Health record

Document the effect and possible side effects — valuable for the doctor's steering of the dose.

brite: run a cortisone therapy safely

Morning intake, tapering plan, check-up appointments and interaction check — all in one place. So you can concentrate on the effect, not on the logistics.

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FAQ: common questions about cortisone

No — the blanket fear is usually exaggerated. Cortisone is one of the most effective medications in medicine and indispensable in many situations. Whether side effects occur depends decisively on dose, duration and form of use. A short or local use (cream, inhalation) is usually very safe. The feared side effects concern above all the long-term, higher-dose systemic use — and even then the benefit often outweighs them.
No. Weight gain and the typical fat redistribution occur above all with a longer, higher-dose tablet therapy. With a short use (a few days) or local use (cortisone cream, inhaled asthma spray) a relevant weight gain is not to be expected. With a necessary long-term therapy, conscious diet and exercise help to counteract a gain.
With correct use this is hardly a problem. Skin changes arise above all with incorrect use — too long, over too large an area, too high a dose or at sensitive spots such as the face. Used correctly (suitable potency, limited duration, according to the doctor's instructions), cortisone creams are highly effective and safe. Often the untreated skin disease harms the skin more than the correctly used cream.
With longer systemic use (tablets) the body throttles its own cortisol production. A sudden stop can then trigger a dangerous hormone deficiency (in extreme cases a life-threatening Addisonian crisis). That is why a longer cortisone therapy must always be tapered slowly and with medical supervision. With a short use (a few days) or local use this is as a rule not necessary.
No — inhaled cortisone acts above all locally in the lungs, only a little gets into the body. The typical systemic side effects of the tablets hardly occur at usual inhaled doses. The cortisone fear that refers to tablets cannot be transferred to the asthma spray. Anyone who leaves out the inhaled cortisone out of worry risks poor asthma control — that is more dangerous than the small side effects.
A cortisone burst is a short-term, higher-dose administration of cortisone over a few days — for example with an acute asthma or rheumatic flare-up or a severe allergic reaction. The advantage: the strong effect is used without the long-term side effects arising. Such a short use is usually well tolerated and often requires no slow tapering — in contrast to long-term therapy.
Cortisone tablets are usually taken in the morning, because that matches the natural daily rhythm of the body's own cortisol release (highest in the morning). This reduces side effects such as sleep disturbances and burdens the body's own hormone regulation less. But the exact intake depends on the doctor's instructions and the respective disease — if in doubt, ask.
Yes, cortisone damps the immune system — which is precisely what is wanted with allergies and autoimmune diseases. The downside is an increased susceptibility to infection, above all with a longer, higher-dose systemic use. With a short or local use this effect is small. With long-term therapy you should pay attention to signs of infection and discuss vaccinations with the doctor. Live vaccines are often not suitable under stronger immune suppression.
Yes, cortisone can raise the blood sugar, because it intervenes in the sugar metabolism — with a longer, higher-dose systemic use up to so-called steroid diabetes. This is especially relevant for people with diabetes, whose blood sugar can rise under cortisone and whose therapy may need to be adjusted. With a short or local use the effect is usually small. The blood sugar is monitored under long-term therapy.
With a longer cortisone therapy the body's own cortisol production is throttled. But in stress situations such as severe illnesses, accidents or operations the body needs more cortisol than it can then provide itself. The steroid emergency card informs treating doctors and emergency doctors about this, so that in an emergency additional cortisone can be given. It is an important safety measure with a continuous therapy.

Related topics

Budesonide Asthma Salbutamol Inhaling correctly Methotrexate Skin rash Painkillers compared Taking medications correctly

Sources

  1. IQWiG — gesundheitsinformation.de: Glukokortikoide (Cortison). gesundheitsinformation.de
  2. Deutsche Gesellschaft für Rheumatologie (DGRh) — Glukokortikoide. dgrh.de
  3. Arzneimittelkommission der deutschen Ärzteschaft (AkdÄ) — systemische und topische Glukokortikoide. akdae.de
  4. Deutsche Atemwegsliga / Deutsche Gesellschaft für Pneumologie (DGP). atemwegsliga.de
  5. Bundesverband der Deutschen Dermatologen (BVDD) — topische Kortikosteroide. bvdd.de
Medical disclaimer: This article is for general information and does not replace medical advice, diagnosis or therapy. The dosage, duration and form of a cortisone therapy are always set individually by the doctor. Never stop a longer systemic cortisone therapy on your own — always taper with medical supervision. With questions about side effects, check-ups or stopping, involve the treating doctor. Last updated: May 2026.