please upload images
I have read your query and understood your concern.
Such itchy lesions over whole body can be due to number of conditions.
It can be due to any of the following:
1. Infective cause
2. Allergic cause
I will like to know for how long you are suffering from this condition?
Do you have associated fever
History of similar lesions before ?
Kindly attach a pic of the lesions so that I can see and comment upon. You have a feature for the same on the right side of this query page. Utilize it.
Also reply to my questions .
Please reply with the answers and send pics of the lesions.