Hi Pankaj Kalita,
Thanks for using HCM.
Skin get removing part by part is normal after removal of cast for skin cells turnover. Burning pain and shaking may be due to involvement of nerve
and pedal edema
and heaviness may be due to compression of blood vessel (Vein). Get her examined by her doctor for any compression on neurovascular bundle and to check whether the vessels are working(draining) properly. She may require doppler scanning and X ray
to diagnose. If any compression that should be removed. Ask her to have adequate regular sleep with foot end raised, plenty of fluids, nutritious diet with required calorie and regular exercises for wellbeing. Hope I answered your question. Consult your doctor for further management.
Feel free to ask me if you have any further queries.
Wish you good health. Take care.
Dr. Lohit K