Take 15 minutes to soak in the warm water. You might find comfort if you add oil, finely ground oatmeal, Epsom salt, or Dead Sea salt to your bath, but keep the water and soap mild. Hot temperatures and harsh soaps can be hard on skin that's already sensitive.
Try not to rub your skin with the towel as you dry off. Gently pat dry instead. The rubbing action can make sores worse and even cause new ones. Follow immediately with a moisturizer.