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 the sore has already erupted and is beginning to scab, use an over-the-counter medication like Abreva to help ease symptoms and reduce redness. Cold sores typically last 7 to 10 days, so it all depends on how early you catch and treat it, says Dr. Welsh. Cold sores are caused by the herpes simplex 1 virus and don't pop up unless something triggers them -- usually stress or overexposure to the sun.