What medicine for thrombosis should I use?

GOOD EVENING, I HAVE NOT ALL 40 YEARS AND A HUGE PROBLEM WITH THROMBOSIS. A FEW YEARS AGO THIS BLACK COLOR FROM THE FOOT TO PRACTICALLY THE KNEE WAS NOT SO VISIBLE BUT NOW THERE IS A MASSACRE OF SOME KIND, THERE WERE SUCH HEAT AND I HAD TO WALK IN LONG PANTS, NOW IT HAS PASSED TO MY OTHER LEG.CZY THERE IS SUCH A DRUG AFTER WHICH OVER TIME THESE LEGS WOULD BEGIN TO CHANGE COLOR.ELIQUIS I HAVE NOT TRIED YET, ONLY THESE INJECTIONS - NEOPARIN. PLEASE TELL ME WHAT ELSE TO DO. I WOULD BE VERY GRATEFUL.