The goal of exercises for plantar fasciitis is to stretch the plantar fascia, the inflamed ligament causing the pain. One recommended exercise is to sit in a chair and roll your foot back and forth over a foam roller, tennis ball, frozen water bottle or ice-cold can. Do the rolling exercise for about 10 minutes a session. Another exercise is to sit in a chair and place a folded towel under the foot’s arch. Holding both ends of the towel, gently pull the towel towards you, hold for 30-45 seconds, and release. Repeat the exercise three times.