Hi there. Looks like your husband might take some time to recover. Post injury there is a tendency for the patients not to move their affected body parts and joints which results in joint stiffness. This can lead to restriction of their movements. He can continue ibuprofen, but you have to understand that painkillers act for a limited duration of time only. If you expect him to make a good long term recovery then i suggest you start him on some gentle passive range of motion exercises for shoulders, elbows and knees. This will reduce the soreness and the stiffness that he is feeling now. If he had a fracture and has been on a cast you need to get an opinion from your doctor about physio for him.