I HAVE A LARGE CYST IN BACK OF MY LEG,

I HAVE A LARGE CYST IN BACK OF MY LEG, I WAS TOLD, I SHAVE IN BACK OF MY LEGS OFTEN. I WAS PRESCRIBED IBOPHEN AND ANTIBIOTIC KEFLEX. I WAS TOLD TO SEE MY REGULAR DOCTOR, I THINK IS IS A BOIL, AND IT IS PAINFULL. I WAS TOLD IT WOULD HAVE TO BE LANCED BECAUSE IT WAS NEAR A VEIN. BUT NOW IT HAS A HEAD AND GETTING FLAT. BUT IT STILL CAUSES PAIN. I USE A BANDAGE TO KEEP IT COVERED.