13 years male has itching in fingers and hand and other parts of body . If he rubs swelling will occurs .please rx and dx

This rash 3yr old male. itchy progressive.diagnosis and treatment please

One year 9 months boy having sever itching and patches over the knee folds and face, scapula region , body .. sir , madam please advise

Mother brought her 3 month female baby with these rash for 2 days , increasing in size . Baby is otherwise active, happy, comfortable, taking feeds well EXCEPT MILD FEVER(98.8F). What is the diagnosis??

35 yrs old patnt itching all over the body with rashes on both hands shown as the pic since 3 days pls Dx and Rx..??