Arnica

Arnica (Anica Montana a.k.a. Leaopard's Bane) is a plant with medicinal properties that has been used for centuries. It's extract can be used topically to reduce inflammation, ease pain, and speed recovery from exertion, bruising, or injury. It is the main active ingredient used in the form of a gel or cream. If you exercise hard or engage in physical activity then inflammation, soreness, and pain are inevitable. Arnica is an effective natural pain reliever that works. Unlike menthol rubs which simply heat the skin, Arnica actually promotes healing.

I use Arnicare by Boiron.