I am known patient of squamous cell carcinoma in right boarder of tongue. It is operated on 15th nov, 2014 and port is completed on 31st jan, 2015.5 chemotherapy and 30 radiotherapy completed. 1st time mri with contast done in the 1st week of april, 2015. No sign of cancer is found in the mri. Now I am suffering swelling in my buckle mucosa and my inner side of mouth became red. I have consulted ent. He suggested me some antibiotics and mouth paste. Then I consulted with my oncologist. He suggested a multivitamin capsule and didn't. Give any attention. He said me that this type. Of problem will appear. Now suggest me the remedy? give opinion why does it occur?