Suddenly I got pain on my right side teeth upper skin, I asked a dentist and he told me that there is a infection and this is the reason for pain and swelling, he prescribed some antibiotics for me to take which are -: 1. Amoxyclav 625 for 3 days (2 per day) 2. Hifenac P for 3 days (2 per day) Just want to know, is there any side effect of this medicine or not? And can I take these and complete the course. Please suggest.