Lamictal works like a charm with little to no side effects here. The rash is not a little red rash, it's the skin dying. Google Lamictal rash images and you'll see what it looks like.
The rash is not a common reaction as long as you follow the doctors directions of titrating up slowly. You'll feel stabile for a few days then it'll like seem to quit working, this is normal. It just means that you have to step up a dose till you hit that level that works for you dear.
You'll know when you get there. I felt "settled" when I got there. I hope it works well for you,
If you, by any chance, do get the rash, quit taking immediately and get to an ER ASAP. You'll need to be treated because it is a life threatening reaction, not to scare you any.
It's a normal thing that everyone goes through at first, like when starting a new drug....fear of the unknown.