<s>[INST] My daughter saw a dentist today and she has a tooth that wasn t hurting but needs either extraction or root canal treatment, but she is now in agony as the tooth has started really hurting. The dentist said there may be an abscess there but that she didn t need antibiotics at this stage as there was no pain or swelling. I have flucloxacillin in the house, should I give her some until she can get an appointment? [/INST] Hi Dear,Welcome to HCM.Understanding your concern. As per your query you have symptoms of  toothache which seems to be due to systemic infection which could be due to badly carious tooth and formation of abscess in that area.Need not to worry. I would suggest you to consult dentist once and get IOPA( X-RAY) done to check extent of infection as there could be chances of bone involvement is there. Go for extraction of tooth and any surgical procedure/restorative procedure if required. Yes you should take Fluoxacillin to avoid any infection. You should do warm saline gargles on daily basis and maintain proper of oral cavity. Avoid intake of sharp and sticky substances. Take proper course of Ibuprofen and Diclofenac.Hope your concern has been resolved.Get Well Soon.Best Wishes,Dr. Harry Maheshwari </s>