My lips all the way around them are covered with blisters and are swollen and hurt so bad what is causing this i am worried my body aches and i feel awful. i have got some cureasore from the pharmacy but my lips look like a monsters mouth and is painful a

You : You need to see your doctor right away. You may be dealing with a herpes outbreak, or if you took antibiotics for your sinus infection you may be having an adverse reaction from the antibiotics. Also there are other viruses that cause blisters in the mouth. In the meantime take advil (ibuprofen) or Ibuprofen for the pain, along with a topical pain reliever like orabase. I hope you are better soon.

Herpes?: It is most likely primary herpetic stomatitis. It is caused by hsv type i virus, and usually the primary infection is at a younger age, but it does sound to me like it is the first big viral infection. After it goes away, it will lie dormant in the nerve trunks of your facial nerve, and on occasion will break out again with less ferocity, usually after trauma, nervous tension, wind or sun exposure.