<s>[INST] my friend had a tooth extraction earlier today. he is taking antabuse. for the past three hours he has felt terrible. pounding headache, nausea, shivering and feverish. I called out of hours Gp and they said it would pass but he feels awful! What should we do? Thanks [/INST] Hi, Thanks for posting the query, I would like to tell you that pain, swelling, nausea, headache, difficulty in mouth opening are common complications after tooth extraction, you don't worry about the symptoms as they will subside after some times by its own you just follow the post extraction instructions given to you properly, take the complete course of antibiotics and analgesics prescribed to you, at home take lukewarm saline and antiseptic mouthwash rinses, Take multivitamin supplements, maintain a good oral hygiene.  Take care! </s>