Hi Jessica - It you are talking about Lamotrigine..The serious rash that
sometimes can be a side effect is called Stevens-Johnsons syndrome...You can google it..But My shrink said that it is like ulcers on your skin & that it
can be life threatening, so just keep an eye open - don't freak out - it is not common, you just need to be aware to get your but to the hospital and tell them what you thinki it is if you break out...I've been on it for quite a while and even been in the sun a lot (which isn't suggested) and I've been fine..
So don't worry..just know what to do on the slim chance you react...
lol Janni