Your foot is an intricate network of bones, ligaments, tendons and muscles. Strong enough to bear your body weight, your foot can be prone to injury and pain. Foot pain can affect any part of your foot, from your toes to your Achilles tendon at the back of your heel. Although mild foot pain often responds well to home treatments, it can take time to resolve. Severe foot pain should be evaluated by your doctor, especially if it follows an injury.