Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. As per your complain it seems that along a red ring around the lips 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, flouridated 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.. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Honey Arora