Worried Mama - ER Visit

My son developed his 3rd MRSA infection two Thursdays ago. At first, it was a pimple on his leg. The next day, a little bit larger of a pimple, but not very worrisome. I knew what it was (Natty has been colonized with MRSA since October 2009 and this was his 3rd infection in 3 months) but with it not growing terribly larger terribly quickly, like it always does, I was entertaining the notion that his immune system was fighting it. Should have known better. Saturday morning, nickel-sized abscess beneath his skin. In we went to the doctor. And got meds. Bactrim. Good old Bactrim. So I was a diligent mother and gave him his doses. Sunday night, during his bath, it looked ugly. As I peered at the leg, I saw these rose-colored streaks leaving the abscess and aiming towards the groin. Oh no. OK, instead of dressing Natty in his PJs, I put him in an outfit, slapped on his shoes, and carted Boy Wonder to the Emergency Room, already writing that $70 copay check because I knew it was pretty important to get the thing lanced. The doctor didn't think so. Nope, not ready to lance. But he wanted him admitted for IV Vancomycin, because it was spreading to his lymph nodes, ready to become septic. And so Natty was admitted. At 4:30 am, I was up, giving the admiting nurse my son's health history as he dozed in his private isolation room. (Because MRSA is so virulent people have to gown and glove to keep themselves safe. And he gets that private room as long as he's colonized.) Well, then next 2 days were a wonder. And on Wednesday we were sent home again. Bactrim for another 10 days. I have such fun in life, I'm telling you. At least the abscess is getting smaller. Thanks goodness for that.