Lamictal refers to a medicated prescription for treating epilepsy and bipolar disorder (also called manic depression). In some of the cases, Lamictal causes grave skin rashes, such as Stevens-Johnson syndrome (SJS) and Toxic Epidermal Necrolysis that can be extremely fatal, leading to large sections of the skin to die, and deformity or dangerous infections. Children consuming Lamictal along with Divalproex or valproic acid stand at a higher risk of developing fatal lamictal skin rashes. However, lamictal rash is not much common among adults. People taking it to treat bipolar disorder experience less or no rashes, while people taking it for epilepsy were more likely to develop lamictal rash.