"first day i took this and i started having jaw pain and eye twitches. by the second day i had the eye twitches, worsening jaw pain, a rash on my jaw, and extreme heat on my jaw. also had a rash on my chest. immediately stopped taking the medicine. my muscles on the right side of my face felt a little weak so i called the doctor. i don&#039;t feel i need to go to the er quite yet but my husband is keeping a close eye on me. (i&#039;m not usually allergic to any medication at all)."