hi ,24 hours ago,i started feeling a dull pain at the top of my leg,not in the genital area,as from the last 24 hours there is no sweeling,but the rash is about 6 inces square the pain is hurrendious,ive ben 2 my doctores and he this itsan affection and has pre 500 mill, antibiotics ...im not fully happy with my doctors ann,as i fear it could b a blood clott,any suggestions?