# Using steroid creams safely

> How much to use, how often and for how long, so topical steroids work well and side effects are avoided.

Source: https://www.skinhealth.clinic/guides/using-steroid-creams-safely/
Written and medically reviewed by Dr Ting Seng Tang, Consultant Dermatologist (GMC 7020502). Last reviewed 2026-10.

Topical steroids are among the most effective treatments for eczema and many other inflammatory skin conditions. Worries about side effects are common and understandable, but problems usually come from using the wrong strength, too much for too long, or too little to work. Used as directed, they are safe and very effective.

## Strengths

Steroid creams and ointments come in four strengths: mild (such as hydrocortisone 1%), moderate, potent and very potent. Your doctor chooses the strength based on the condition, how severe it is, the area of skin and your age. Thin skin, such as the face, eyelids, skin folds and genitals, and babies’ skin usually need milder preparations.

## How much to use: the fingertip unit

- One fingertip unit is the amount squeezed from a standard tube along the end segment of an adult’s index finger (about 0.5 g).
- One fingertip unit treats an area of skin about the size of two adult palms.
- Apply a thin layer to all the affected skin, usually once or twice a day as directed, and smooth it in gently.

## Good practice

- Treat flares early and fully until the skin has settled, rather than stopping as soon as it starts to improve.
- Your doctor may recommend “weekend” or twice-weekly treatment of usual flare sites to prevent eczema coming back.
- Keep using emollients throughout, applied separately from the steroid.
- Do not use a steroid on the face, or a stronger steroid than prescribed, unless your doctor has advised it.
- If you have used a strong steroid for a long time, do not stop suddenly without advice; your plan may need to step down gradually.

## Side effects

Side effects such as thinning of the skin are uncommon when steroids are used correctly, and are mostly linked to using strong steroids on thin skin for long periods without a break. If you are worried, or your skin is not improving, ask for a review rather than stopping treatment altogether.