Hi Ferrariangel!
Welcome to our community!
You can post a picture by using the "buttons" that are above the posting window when you use the "Post Reply" button below. The 'button' that you want to use is the one marked "IMG" and then click on that button after you have listed the picture.
Or, you can just post a link to photo bucket or other photo sharing site.
What you describe certainly sounds like a bulls eye rash, which is indicative of Lyme disease, as it's the skin form of the infection.
Here are some Bulls eye rash and other Lyme rash photos for you to look at:
www.lyme.org/gallery/rashes.html