Hello,
Doxycycline is the preferred antibiotic for
perioral dermatitis but since you are allergic to it, it cannot be used. In unresponsive
and granulomatous forms, oral isoterinoin may also be considered. Pimecrolimus cream can also be used. I suggest you to consult a dermatologist and discuss these treatment options with your dermatologist.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided.