What Causes Numbness In Mouth After Using Mouth Wash?

I was recently diagnosed with Viral Stomatitis right after Thanksgiving and was taking the miracle mouth wash following my last menstrual cycle I had another case of the out break and continued with the mouth wash. Now I am clearing up, however I now have numbness in the back of my throat and have not completely healed. I have also developed symptoms of a yeast infection with the two out breaks