Microinch is a length measurement unit. A microinch (Âµin) is a non-SI (non-System International) measurement unit of length or distance, and equal to one millionth of an inch (0.000001 inch).ORT?
Responses (2) Mupirocin is an antibacterial so it won't work on cold sores, which is a viral infection. For what its worth i had a cold sore the size of a dime last week and after 4 days of mupirocin it almost completely vanished. I have never got rid of a cold sore so quickly.
If you have the virus that causes cold sores in your system (as does 50-80% of adults in the US), any drug that suppresses your immune system (such as Humira, Remicade, prednisone, chemotherapy for cancer patients, etc.) will make cold sore outbreaks much more likely.