I Went To The Hospital Two Nights Ago Bc A

I went to the hospital two nights ago bc a family member told me I had staph. The doctor who saw me agreed, though didn't test for type or anything...I have been on medication but seems to be getting worst. The family member also has had staph and had to under go surgery. The infection traveled to his heart and spine. I'm concerned, and in pain, wondering should I go back to the emergency room? I don't have any insurance so I want to be sure.