Locoidon is a local corticosteroid used to treat various inflammatory skin diseases (atopic dermatitis, psoriasis, eczematoid dermatitis, nummular dermatitis...). It is available in the form of a cream (Locoidon lipocream) or dermal emulsion (Locoidon crelo). The active substance found in Locoidon is hydrocortisone butyrate. Corticosteroids are drugs that act anti-inflammatory or reduce inflammation.