My mother has been facing dvt problem in left leg, edema, and she is obese too. earlier few doctors were diagnosed as it is filariasis, used medicines of alopathy, ayurveda, and homeopathy too, but recently few doctors told that it is dvt, and color Doppler test has been done, leg color is changing into blackness and getting itching sensation, apparently getting sores on leg, can u please suggest me is there any surgery for complete cure of this problem, and who is the well known, most experienced surgeon for this. thank you,