<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am just after having pilonidal sinus excision surgery with disposable sutures and currently have the vacuum dressing and in the days following I have had severe pain in my teeth, worse when chewing food to the point that it is unbearable to chew. I was on antiobiotics for a cold- sore throat, cough, blocked nose at the time. I have extremley dry mouth no matter how much I drink and following the surgery and painful tongue also.  <response>: Hi, Thanks for asking the query, I would suggest you to visit the Dentist and get the checkup done, take an x-ray of the infected tooth after complete healing of your surgical wound you can start with the dental procedures. Follow the post-operative instructions properly, maintain a good hygiene. Xerostomia makes the oral cavity susceptible to any kind of infection consult your treating doctor for detailed clinical examination. Maintain a good oral hygiene avoid alcohol, carbonated Chat Doctor. Hope this helps out. Regards. 