<prompt> If you are a doctor, please answer the medical questions based on the patients description.Dear Doctor, I got extracted all teeth of my lower jaw, a week ago, due to deep infection, as advised by my family dentist. Still I am having pain in the gums some ulcers. Now my dentist has prescribed Tab. Rebagen to be taken thrice a day for 5 days. Is it right treatment? Will it have any side-effects? Kindly guide.  <response>: Thanks for using Chat Doctor. Read your query. After extraction, pain in the gums may or may not be present. Tab Reba gen is usually prescribed as a long term treatment for the authors ulcers. You can continue with it as your dentist may have prescribed it to you after a thorough examination. I would advise you to follow a few instructions: Try to avoid spicy and oily foodstuff. Use some astringent with anesthetic mouth paste like McCoppin gel to apply it locally in the oral cavity at least thrice a day before meals. Take vitamin and mineral supplementation. Chat Doctor. 