Painful mouth sores every 2-3 months. please help?

Prevention and rest: Studies have shown that the 2 most common reasons for adults to get recurrent upper respiratory tract illnesses including aphthous ulcers in your mouth) are: 1- improper sleep. 2- touching our face a lot! stress is definitely a big culprit. Not many medications are effective. Prevention is the best treatment. Try to sleep plenty, be hydrated and relaxed. If they keep recurring stop by your pmd.