I don't like taking pain pills and only take them when there is absolutely no alternative available. For a few months I used Kinesio tape and it did help to reduce the pain. You can even wear it in the shower which I did. It is expensive and I wore it for days at a time. I wore it so often that I managed to cause the skin on my legs to bleed. Moderation is the key with that tape. Sometimes my wife pulls out a horse leg wrap and I do find decent support that way but the bandage sometimes slips when I pull on my jeans or and often when I exercise. I have to remove it for swim therapy and never get a good rewrap.
I do try other approaches for support and pain relief and recently pulled out a neoprene sports brace which I purchased a few years ago, the kind they sell at drug stores - one size fits all sorta. After using it for a couple of days my knee was twice as sore as before I put it on. I stopped using it and surfed the Internet for more info where I discovered that there are two basic types of off- the-shelf knee braces. The sports type that I had tried and an arthritis brace that I hadn't. The arthritis model has steel hinges on both sides of the knee and adjustable straps above and below knee which give it more support. The wraparound style makes it easier for me to put it on myself. I just have to align the knee hole with my knee.
Since I started wearing it a week ago the pain is down to about a 1 or 2 on a scale of 1 to 10. This allows me to walk at a somewhat more normal gait since without pain I have a bit extension of my legs. The PD stiffness doesn't help.
Mueller model 6455-1 about $24.99 + tax at Walgreens - well worth the price. There are other models as well