Your skin condition might be a fungal infection
. Other possibilities are fixed drug eruption
In any of above cases Mixed preparation Like steroid
+ antifungal combination ointment can hide the exact diagnosis but relieved you symptomatically.
For diagnose your condition properly you need to stop applying topical cream/ ointment for at least 14 days.
Take tablet-Atarax 25 mg twice daily for 14 days.
After end of 14 days you should consult a dermatologist
for your disease pattern and management of it.