Suggest Remedy To Increase Range Of Motion In Elderly

I have hip pain and can barely put my sock on my left foot and tying shoes is not possible. I have been told this is arthritis. My doctor said it was from keeping my wallet in that pocket and threw my hips out of place. Was like that for 3 years and now I am going to a chiropractor that seems to be getting them back but I am not gaining flexibility and hurts like mad when I try to stretch it. I have started taking 2 Aleive in the morning, seems to help a little with the pain but no more range in movement. I am 51 and male