My mother had spine surgery (Laminectomy and discectomy) on July 29th, 2020 and 31st, July 2020 we discharged my mother. During September, leg swollen got increased in both legs and it is not reduced days goes on..We took  LFT, RFT, Venous Doppler test. After reviewing the report, the doctor told there is DVT formed in the leg and asked us admit in hospital. They put Enoxaparin injection 2 times in day for 3 days. We could see both leg swollen got reduced completely. After we discharged to home  and doctor suggested to put same injection for next 3 days and asked to put Warfarin tablet. We did as per doctor suggested. After some week , leg swollen got increased moderately and still being in the same level. When they sit or walk for some 5 to 10 min the leg swollen increased again.. When we check with doctor, the doctor says it will cure in further months and asked to continue Warfarin tablet. But we little feared, please suggest how long it will take to cure leg Swelling...