I have had a cyst right on my underwear line for about a year now. My OB/GYN has been keeping an eye on it and always said that it was nothing to worry about and that it would be more trouble than it is worth to have it removed. It didn't bother me, so I let it be.

However, a couple weeks ago the cyst came to a head (I'm guessing from my underwear rubbing) and burst. It has been draining ever since. I have been keeping it clean and keeping antibiotic ointment on it.

Today, I had my 12 week check-up and had to see the other OB in the office (my first time seeing him). I had him check it and he did a culture and said it could be MRSA! WTF?! So, now I am freaking out. To make matters worse, he prescribed me a 10 day dose of Bactrim and the label says not to take while pregnant. I looked it up and it is a class C drug. Now I am freaking out even more.

Has anyone else used Bactrim while pregnant? Did everything turn out ok? Has anyone had a staph infection while pregnant? What are the implications for the baby?