Hi, Welcome to Health care magic forum.
As you describe it appears to be the fungal infection
, the ring worm
. When you have used medicine you got cleared of the infection , but not completely. It is there in a dormant state and may flare when ever the situation is favorable.
I usually prescribe to my patient with such symptoms grisofulvin 500mg BD, for one month, and mixed steroid
ointment for 3 months.
Take more of green leafy vegetables, pulses, sprouts,and
protein rich foods to hasten the recovery.
Wishing for a quick and complete recovery. Thank you.