I from time to time have lower back pain due to arthritis and a herniated disc. And sometimes will take Naproxin for it. Problem is, I have been diagnosed with Behcets Disease to where my mouth breaks out with sores. And I think the Naproxin tends to aggravates my mouth flare ups even more. I would like to try and take an anti-imflammatory, without it affecting my mouth. Anyone have this type of problem with Naproxin? It does help my back, but can't handle the extra pain with the mouth sores especially if the Naproxin is increasing the pain of the mouth sores.