Hello,
One possibility is of pityriasis rosea which is very common on trunk and extremities. Pityriasis rosea is a common human skin disease which presents as numerous patches of pink or red oval rash. The rash may be accompanied by low-grade headache, fever, nausea and fatigue and itching. Topical and oral steroids are needed. Water, sweat, and soap may cause irritation and should be avoided in the disease. Topical zinc oxide and calamine lotion are useful for pruritus.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
It honestly does sound like ringworm.. thats how mine was when i got ringworm and the cream they gave me for ringworm specifically didnt work so they gave me something stronger i dont remember what it was it was quite a long time ago... but if you find out finally what they are or anything to that nature let me know its a question very inquiring!!! hope you feel better!