Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain the symptoms of red inflamed ring around the mouth along with burning sensation and cracking can 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
Metronidazole..
You can also be advised oral intake of
Erythromycin..
Ointments containing Azaelic acid,
Pimecrolimus etc can help..
You can also be advised retinois like Adapelene..
Avoid any skin cosmetic or steroid ointments..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.