Suggest Treatment For DVT In Left Leg

Hi I m a 44yr old female, I was diagnosed with factor v Leiden in 2001, and have been taking warfarin since. Original blood clot was misdiagnosed, despite me telling medical staff of how much pain I was in. I was constantly sent home a week later they realised what was wrong (DVT). By this stage my entire leg was clotted and has left my left leg permanently damaged. If I m on my feet too much in a day my leg is practically doubled in size. Since then I have been getting really bad leg cramps and pins and needle sensations is there anything I can do to help relieve these. I was told there is nothing that they can do about my leg but it leaves me very paranoid about wearing dresses etc. Thank you