Been reading remarks on showering situations. I solved my problem by quit taking showers. haven't showered for over a year. JUST KIDDING!!
Seriously, I load up on O2, Check my finger monitor to see if I'm in the 90s. When I feel ready, I turn on water to warm, not hot. use NON SCENTED soaps and shampoos. Have long handled brushes for back and feet. Do hair last I'm a guy and don;t have long hair. Have portable tank at the ready just in case. Hope this helps. Take care, all.