I too had anxiety over "the rash".... but also the brain can manifest your physical worries. Have you googled lamictal rash images? That helped me a lot. And if you are experiencing something that you've experienced before....then you most probably will be alright.

The first weeks on lamictal are the worst for it takes so long for the therapeutic dose is arrived. Can you get something for your anxiety?

Bipolar and SSRI doesn't mix well without an effective stabilizer in effect just yet. It's a golden ticket to hypomania.

Hang in there sweety.