Will there be any negative side effects with regards to masterbating and using minocycline?

medicalhelp; The rashes and the breast tenderness that you have is part of taking the medication. It has nothing to do with your masterbating. The side affects that you are having are very normal for the medication that you are on. The longer that you are on the medication the less bothersome the rashes and tenderness should become. So go ahead and continue your self gratification. And keep in mind if you are sexually active this medication does make birth control less affective. Stay out of the sun because that will also cause skin blotches. Good Luck