Hi, Kristiemarie
I am not sure about the length of time it has taken for the rash to appear. I can only tell you what my pdoc told me because he put me on lamictal, although I did not stay on it I was getting really bad migraines. He did tell me if I got a rash on my chest or face that was sore to the touch to stop taking it and contact him.

So probably a good idea to contact him.. Try not to worry though it will be okay