Self-Care Decrease training immediately. Do not run if pain occurs during or following your run. Non-weight bearing exercise may be necessary. Swimming, biking, and pool running can all be used to maintain fitness. The foot is more likely to pronate excessively on mushy grass or sand.
Packed dirt is ideal, and avoidance of concrete is also helpful.
In many cases shoes that are rated high for control of pronation may be helpful. Gentle posterior stretching exercises may help, but control of pronation is more directly related to the cause of this syndrome. Ice applications following running may offer some relief, but are not curative. If symptoms persist it is important to seek professional medical attention. In office medical care will repeat some of the procedures that you have done.