Lamotrigine
"Great medicine, but if I missed a dose I would feel nauseaous.  Once I ran out of it and missed 2 doses and got really sick with sweats, nausea, chills, and faintness.

Don't ignore a rash.  There is more than one type of rash.  One type is extremely dangerous.  Call MD or if you can't, go to ER.  I did not get a rash, but would have done something about it immediatley..."