My daughter (7yrs) is having a kind of skin irritation mostly in limbs whaich stays for a day or less but often comes back any time another day in a week. It looks like a red patch with circular or elliptical outline, skin becomes warm and swollen and itchy. Side symptoms like running nose / sneezing is not there always but she is a bit prone to allegies easily so sometimes both occur together.
I remember these I have seen with me / my brothers in childhood days (but not so frequently) when skin gets hardened up with redness and warm feeling which goes off in 4-6 hrs time. Do not know what is the treatment and what are they called medically.