After recently dislocating and tearing a ligament in my knee I hired a red light pad to assist with healing and it really helped. Within a few days the swelling reduced and movement became more free without pain.
I have used red light pads to assist with my horse and always wondered if it did really help - I can say after using on myself these are fantastic.
Even the dog when she had a sore shoulder benefited from it - so helpful for all the family both 2 and 4 legged!
I am hoping to purchase one in the not so distant future.