Apart from the treatments you are going through you can try acupressure, physiotherapy, specially designed footwear and soles, and massage therapy. Combination of pain killers may also help. Also, a detailed assessment of the cause of pain is required. Sometimes addressing the cause lowers the pain a lot. Please consult your doctor regarding this. Hope this helps. Take care!
The medical advice given should not be considered a substitute for medical care provided by a doctor who can examine you. The advice may not be completely correct for you as the doctor cannot examine you and does not know your complete medical history. Hence this reply to your post should only be considered as a guiding line and you must consult your doctor at the earliest for your medical problem.