Watermelon cream spray has some relief for mouth ulcers, but it cannot cure them. Mouth ulcers are caused by autoimmune deficiency, a manifestation of systemic diseases in the oral cavity, and the pain and swelling are obvious when the ulcers attack. Watermelon cream spray has anti-inflammatory and antiseptic effect, can promote the healing of mouth ulcers, at the same time can effectively relieve the pain when the ulcers attack, but can not be cured. You can improve your own immunity through physical exercise, if the mouth ulcers recur or more than two weeks still did not heal, you need to consult a doctor. Watermelon cream can promote the healing of mouth ulcers, relieve pain, the treatment of mouth ulcers is beneficial, for long-term non-healing mouth ulcers need to go to the stomatology department in time to see a doctor. Watermelon cream spray should be used under medical supervision.