Thanks for writing to us.
from the description it seems he is having rashes of atopic eczema
. To treat the same
Use a mild cleanser or soap bar like cetaphil
or venusia or hidrate or aqua soft etc
apply an intensive moisturiser like cetaphil restoraderm. Just remember as much as you keep the area hydrated, lesser are the chances of irritation, itching, scaling and redness. If in case the lesions do not seem to subside continue use of emollients along with a mild steroid cream like desonide
Hope that answered your query.