Hi Tracey.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain Mouth ulcers after extraction of teeth can occur commonly due to allergic reaction to the medicines that are given to you post extraction that are antibiotics and painkillers while more chances of reaction is with antibiotics.. You need not to worry as when you will stop taking the medicine the ulcers will slowly heal but if the condition is worsening and you are in severe pain you should consult your dentist and get evaluated and if possible he can either reduce the dose of medicine or get the medicine changed.. You can continue doing warm saline gargles, gargle with 1:1 solution of benadryl liquid and milk of magnesia, suck ice pops,apply numbing gel like orabase and steroid based oral pastes to reduce pain and burning sensation. You can also take a Steroid tablet like Medrol or prednisone twice a day. Maintain a good oral hygeine.. If you are not taking any painkiller you can take Ibuprofen for pain relief.. Hope this information helps.. If you find the answer helpful please give me a Five Star Review and click on found the answer helpful as a token of appreciation.. Thanks and regards.. Dr.Honey Nandwani Arora..