<s>[INST] Hello,I took my six year old to the dentist today and Dr said that one of her molar were she has a crown is infected and said that it needs to be removed and then have a spacer in. I ask if my daughter would need to be on antibiotics first and she said no. Should I get a second opinion? [/INST] Hello, I often prescribe an antibiotic when I extract a tooth, but not always. If the extraction was complicated or the patients medical history raises some concern about healing ability, I will prescribe an antibiotic. I often prescribed an antibiotic prior to removal to control the spread of an active infection or for a very symptomatic tooth.  Pain medication and anti-inflammatory medication may be adequate. Should of painful situation arise 3 to 4 days after an extraction, I would be concerned about a Chat Doctor. I would suggest a second opinion if your concern is whether the tooth should be extracted. There may be an option to save the tooth. You could ask the current dentist if there is any other option for this tooth. Thank you for your inquiry. I hope my answer is helpful to you. I would be glad to provide additional answers if you provide additional details or have more questions. </s>