Heat relaxes your muscles and spurs blood flow. You can use a moist heating pad or a warm, damp towel. Many people like using microwaveable hot packs.
Don't go too hot. Your skin shouldn’t burn.
You can also use heat therapy in the shower. Let the warm water hit the painful area on your body. That may help soothe it.
A hot tub is a good way to relax stiff muscles. Just don’t use hot tubs or spas if you have high blood pressure, heart disease, or are pregnant.