My wife is recently suffereing from pain in the leg. I have noticed an unusual bulging (swelling) just above her elbow (leg) where the pain starts developing. She is not able to walk freely as folding the leg around the elbow is painful. She walks with stretched leg during these times unusally. This pain goes off when you take pain killers like diclofenac, but repeats periodically. Can any doctor suggest some medicine to avoid/ reduce the swelling around the elbow which could help my wife free from this problem.