After spending a weekend in Kananaskis and a weekend in Waterton, Alberta, my 2 year old suddenly developed a target like rash. This rash is a sign of Lyme Disease. Problem here, many doctors are under the understanding that there is not Lyme Disease in Alberta. I was easily able to find articles indicating that it IS in Alberta (I will list later).
If you have this type of rash, contact www.canlyme.com they are great support and give you the information that you need in order to get treatment. Early diagnosis and treatment are the only way to not deal with possibily a life long battle with issues caused by this infection.

Large Target type Lyme Disease Rash
She also had 2 other small target rashes, which can happen as well. This is what they looked like.

Small Target Rash - Possible Lyme Disease
So Why am I putting this on an Arthritis Site? Well, Jessica flared 2 weeks before my baby got this rash. Arthritis Flares, especially water on the knee are highly linked to Lyme Disease where there is Lyme around. Could she have gotten bit too? Probably a far fetched idea, but due to my other daughters possible bite, we are having her treated for it as well. We will keep a log to see if the antibiotics work at helping her flares.
Here is the research on Lyme Arthritis.
http://www.canlyme.com/pediatric_arthritis_lyme.html