This has been a controversial issue for some time. The first consideration is that the hot tub should be very clean, which would probably rule out many commercial tubs that accommodate lots of people during the day. Don't go in with any open sores, cuts, etc. With poor circulation in hands/feet, a hot tub is not recommended, as one has a reduced ability to sense high heat. If your physician doesn't see an obstacle, start with a few minutes, working up to a maximum of about ten. Be mindful of chlorine, which may be irritating.