thanks for posting your querry. I think that you could be suffering from either a fungal infection
from the history. Remember if the skin lesion disappears it could be urticaria, if it persists it could be a fungal infection.
for fungal infection you could try
tab 150 mg per week for 4 weeks
2. Micanazole gel to apply twice a day
3. Tab cetrizine 5 mg per night
if it does not resolve you must consult a dermatologist