A small lump on the palate of the mouth that keeps hurting may be due to dietary factors, salivary gland cysts, oral ulcers and other factors, which can be relieved by adjusting the dietary structure, surgical treatment and medication. 1. Adjusting dietary structure: a small lump on the palate of the mouth may be caused by the patient eating too hot, spicy food, you can adjust the dietary structure, avoid eating too hot food, the diet should be light. 2. Salivary gland cysts: a small lump on the palate of the mouth may also be a salivary gland cyst, generally due to the surface mucous membrane of the oral cavity is damaged, a large accumulation of saliva will make the local bulge, looks like a small lump. The cyst can be removed through cystectomy surgery to avoid recurrence. 3. Oral ulcers: oral ulcers can also cause a small bump on the palate of the mouth hurts all the time, you can use the application of oral ulcers to wipe, can effectively relieve the symptoms. If the patient has a small bump on the palate of the mouth has been painful, it is recommended to go to the hospital in time for examination and treatment, the drug should also be under the guidance of the doctor.