<s>[INST] For the past couple of days I ve noticed a white ring around my mouth with a little redness around the outside of the ring. I recently went off birth control and have heard that can cause lightening around the mouth. I also had quite a few strawberries the other day and thought it could be an allergic reaction, but I thought that would have gone away by now. Help! [/INST] Thanks for your query, I have gone through your query. The white ring with red outline could be a symptom of erythema multiform, that is an allergic reaction to the strawberries. Consult an oral physician and get it diagnosed. Once it is diagnosed you can take anti-allergic tablets like cetirizine or rupatidine. If the lesion does not subside within 5-7days, consult a general physician immediately. I hope my answer will help you, take care. </s>