i had my wisdom teeth pulled 3 days ago under Anestesa  and since then my throat has been sore and I just recently looked in the back of my throat and there are white sores back there. The anastesia also made my lips crack and peel so Im wondering if this was a reaction to the medicine
The reaction is because you aren't having proper diet and also the medicines' amoxicillin has a side effect on the stomach. So the ulcers are caused due to problems in stomach. Use chlorhexidine to rinse your mouth along with warm saline gargle. Apply Vaseline jellies on lips.