<s>[INST] Hi, I got an infection in my wisdom tooth last Wednesday and was perscribed amoxcillin which wasn t doing much so went onto flagyl on Friday. I am now taking both and pain seems to have subsided slightly but noticed a hole has now developed in my gum and am really worried. Any advice? Thanks, Lisa [/INST] Hi! Welcome to Healthcaremagic.I read your query. As you mentioned infection in wisdom tooth, this hole seems to be the sinus formed for pus drainage.You need to visit a dentist and after x-ray and examination, he can decide if the tooth can be saved by RCT or if needs extraction.Complete antibiotic course before and after the treatment as per prescription.Do warm saline rinses. Maintain oral hygiene.Hope the answer helps you. Thank you. </s>