my baby is 10 month old . from 3 4 days suddenly on his chest and stomach area choti choti funsi uth gyi h and skin is also red. he is not itching much. but I thinking it is troubling him. on his legs also the is rash on lower limbs. he have atopic dermatitis and having rash on his face . but this chest and legs problem suddenly rise up. how to treat it??