I had tooth #3 plled on the 31st I noticed something was wrong immediatly! when I would breath out of my nose air was coming out of the extraction hole, I went back to my dentist the next morning he said I did infact have a hole in my sinus.He packed it with foam stuff & stichted me up. I got extremely sick & noticed I have blisters on the roof of my mouth and under my tounge on the right side & I'm in a lot of pain too much pain for 1 week after. I went back to my dentist & he said it's one of 2 things either chicken pox in my mouth or herps! I of course freaked out & hoped it is chicken pox! I'm not sure if my dentist is right...I didnt have any problems until he pulled the tooth, now a hole in my sinus which he just said it will heal on it's own & sent me home. Now Blisters I don't know if I shoulld see my regular Doctor or just listen to him? I'm in a lot of pain still & advil is not helping. He gave me valtrax but I havent filled it yet because I thought that was for "downstairs" herps which i have never had. I don't know what to do any advise????