Treatment of this includes application of Burrow’s or silver
nitrate solution,lukewarm water baths,oatmeal baths,topical and systemic steroids ,antihistaminics,emollients to moisturize skin and antibiotics in cases of secondary infection.
I sincerely advise you to take an opinion from a dermatologist and discuss these options with him.
Hope it helps.Take care and pls do keep us posted if you have any additional queries.