Welcome to healthcare magic.
You have problem of chicken pox
that cause by varicella zoster virus
Avoid non vegetarian food like egg ,fish...
Avoid bath till boil become dry....
Some lotion can use under doctor's suggestion to avoid itching..
Maintain a hygiene..
Wear a loose light cloth..Maintain a hydration of body.
Consult a physician for further treatment.
I hope this will help you.
Get well soon..