Hi,
As per your complain rash around the mouth that is spreading to chin and jawline seems to be due to
perioral dermatitis. It can be caused due to disturbances in microbial flora over the skin, bacterial infection,nasal and topical steroids, fluoridated toothpastes, harsh chemical cosmetics, poor facial hygiene, hormonal imbalances etc.
I would suggest you to
consult a dermatologist and get evaluated and he can do a thorough clinical evaluation and advise you to apply topically ointments containing Doxycycline,
Metronidazole. You can also be advised oral intake of
erythromycin. Ointments containing Azaelic acid,
Pimecrolimus etc., can help. Avoid any skin cosmetic or steroid ointments. Avoid excess sun exposure, use gel based sunscreen lotion.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Nupur K., General & Family Physician