We just purchased a TENS unit to stimulate sore muscles and provide relief from the aches and pain of our age and activities.
Search for them online; relative inexpensive; no Rx needed in many cases. Get one that is simple to use; supplies available online also.
Ice pack plus Tens unit works well also; 20-30 minute session with either or both 2-3 times daily is effective.
Good luck and blessed healing for you.