 [ Symptoms ] my daughter is ten months old she has seborrea on her head i want to know what cause is it and is it treatable [ Disease ] seborrheic dermatitis seborrheic capitus is very common in children the causes are often undiscoverable so the focus is generally on the treatment medicated shampoos both over the counter and prescription are often used as well as prescription solutions containing topical cortisone shampoos with selenium sulfide are particularly helpful in managing this skin condition