Did mine (combined PRP and Stem Cell) on both knees twice in a period of four years, first was 2019 then 2nd one August last year. I used Hyruan One Intra-articular treatment kit. Cost me RM3K for two shots on both knee. So far it does alleviate the pain but still it is not a long term solution. Did mine at Orthopedic clinic UITM Hospital.

Not that painful IF the doctor is experience and knows what he is doing and you can walk as normal after the procedure... After the treatment like I said, it helps to alleviate the pain and you lead your normal routine life but PRP is to ease the pain so it is highly recommended that you also compliment the treatment with physiotherapy.  If you are active in sports, it may take some time before you can fully do sports..Best consult with your doctor first