<s>[INST] After treating fever blisters, about a week later the skin around my mouth became extremely dark. Now it just won t return to normal. I was told i had impetigo because the skin right underneath my nose was much lighter and had a couple scars (where my skin was open from the fever blisters) when i went back to the doctor about this and received some mupirocin and an anti-biotic for it. The doctor said it would clear up in a week, but it hasn t. What should i do to clear up this dark skin around my mouth which looks like a 5 o clock shawdow? [/INST] Hi, Thanks for writing in. Impetigo and postinflammatory pigmentation over face are your problems. Mupirocin will take care of impetigo. Hyperpigmentation usually takes longer time to go.  Sun protection is most important for any cosmetic treatment. Use good quality sunscreen. Avoid sun exposure. Use brevity face wash. Apply Bolivia cream at night over the dark area.  Visit a dermatologist for some clinic based procedure like chemical peeling and laser. The visit to dermatologist will confirm diagnosis and allow prescription Chat Doctor.  Hope this helps. Regards  </s>