Why I don’t do lymph work in a sauna or super hot shower

At MOST — I will do light lymph work like the Big 6 (by Dr. Perry Nickelston) in a warm shower. Not a hot shower. Definitely not a sauna. Dry brushing I don’t do in a sauna. Or before a super hot shower. Even when it’s not lymph focused (because remember there is simple dry brushing for skin, which is amazing, and there is dry brushing that’s good for both skin AND lymph. That one takes a little…