I often get cold sore or fever blisters when I was young. As an adult, I changed my diet to keep from having them. When I do get it, it leaves my skin around my mouth and on my lip a light blemish. When I was younger, it would leave a dark blemish, but it would fade away. The light blemish is still here. Is there anything I can use to darken the light blemishes.
Hello,
It can be due to hyperpigmentation skin or melasma. Topical treatments with acids and chemical peels can be effective but can take a while for the skin to totally revert to its normal color. Microdermabrasion can also be done, but this might require several sessions. Skin resurfacing using lasers is also an option.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.