Another proof that some doctors ignore, the skin as a sponge for we come in contact with. If a NSAID can not be taken orally, why would it be suggested to be applied topically? My wife used Voltaren long ago when it was R/X only for her knees before surgeries, allowing me to read the specific instructions showing the exact size to scale of maximum amount of gel to be applied. The enclosed instruction sheet mentioned possible stomach side effects and to be taken with food only, plus that it can be fatal over time if over applied. For that reason, I do not use it and stick to the good old 600 mg Ibuprofen in R/X form to protect the stomach lining, compared to the OTC version. Has your husband ever tried taking a Turmeric supplement? This also has to be taken conservatively, but is very functional for inflammation. I am sorry for your husband and your discomforts, wishing you both a discovery of sorts for some relief.