hi sir, my son is 7 yr old who has declare a morphia the area is effected left hand from elbow to left thum as we have shown many doctors they suggested few medicine but as m not finding any difference after that he has this when he was of 2yr old but it spread more in last yr only now from last 4, 5 mnt m not finding any new paches on him.the hand is very thin do u suggest me any kind of medicine or physiotherapy