Suggest Medications For Pcos

I have swelling on the left side of my face due to what I believe is a back up of saliva in my parotid gland. This has happened before and normally by massaging the area, I can allow the saliva to be released. This all began to occur about 6 years ago when I suffered a concussion from hitting the back of my head on the ground in a basketball game. I was wondering if there is a correlation between concussions and salivary issues?