It is due to gum infection which is again due to calculus deposit on teeth and into the gums. You have to see a good dentist who will clean the teeth with an ultrasonic scaler or a periodontist who is specialised in gum surgery. You have to take medicines and mouth wash. If you are diabetic please check and report that to doctor. If you have any chewing habits or smoking habits please stop that. Please tell the doctor that you have difficulty in taking spicy foods and hard goods and then he will check the mucosa for any specific diseases.
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