I have work sleep related issues and am considering going on modafinil. im going to discuss it with a doctor, but i also read about a potentially deadly side effect stevens-johnson syndrome, toxic epidermal necrolysis and dress syndrome. need advice?

Rare things are rare: Stevens Johnson syndrome (toxic epidermal necrolysis) is a severe, sometimes fatal, allergic reaction. It occurs in about 2-4 people per 1 million people each year. About half of the cases have no known cause, more than a fourth of the cases are felt to be due to infections by viruses, mycoplasma, bacteria, etc... The remaining 20% or so of cases are believed related to a variety of medications.