Hello, I suggest that you closely look for changes and try to determine if there are any habits, foods, new dental or cosmetic products used, allergies, work conditions, sleeping conditions, chemicals or medicines that may contribute. Does this sensation change during the day? Has it increased or decreased over time? Going to the dentist to rule out a dental cause is an excellent first step. Mouth breathing or grinding your teeth can be traumatic at night. Do you have any of these habits that might irritate your tissue? Growths or salivary gland disorders can be responsible for tissue changes. Various oral infections will alter tissue as well. Choice of new products can have an ingredient that may cause an allergic or inflammatory reaction. Consider a visit to your physician to check your blood work. Deficiencies or excesses can cause tissue reaction. Systemic illness can be screened for with some basic bloodwork. Keep well hydrated. This step alone is good for your tissue. Practice good oral hygiene and make sure to have a balanced diet. More details should help isolate your cause. Do you get any relief from Antiinflammatory medication such as Tylenol or Advil? Does allergerybrelief medication relieve symptoms? Benadryl is a popular antihistamine that you can try. Rinse with some warm salt water to soothe oral tissue. Thank you for your inquiry andvI hope my suggestions are helpful.