Tendonitis of any tendon is generally treated the same way. The goal is to reduce the inflammation (swelling) and pain, so you can start using your foot again.
Traditional treatments include medications that reduce the swelling and pain (anti-inflammatories), exercises of physiotherapy, or special equipment (orthotics) to left the heel from being flat on the ground. If these treatments don’t work, surgery may be the next step. However, new treatments using shockwave therapy are showing promise in treating tendon injuries.