treatment > corticosteroids...

Dermatitis is often treated by doctors with prescribed Glucocorticoid (a corticosteroid steroid) ointments or creams. For mild-moderate eczema a weak steroid may be used (e.g. Hydrocortisone or Desonide), whilst more severe cases require a higher-potency steroid (e.g. Clobetasol propionate). They are highly effective in most cases, but must be used sparingly to avoid possible side effects, the most significant of which is that their prolonged use can cause the skin to thin and become fragile (atrophy).

High strength steroids used over large areas may be significantly absorbed into the body causing bone demineralisation (osteoporosis). Finally by their immunosuppression action they can, if used alone, exacerbate some skin infections (fungal or viral). If using on the face, only a low strength steroid should be used and care must be taken to avoid the eyes.

Hence a steroid of an appropriate strength to promptly settle an episode of eczema should be sparingly applied. Once the desired response has been achieved, it should be discontinued and not used for long-term prevention.