Male patient symptoms and conditions

I am an intensive care physician , one day we got a 75 year old male patient for acute allergic skin manifestation and general body swelling , the patient has been taking Lamictal tablets for seizures control after brain surgery few months before his presentation the patient was put on i.v steroid therapy along with antihistamine, on the second day we noticed that his skin is peeling off and his breathing got embarrassed , the case was diagnosed as( TOXIC EPIDERMAL NECROLYSIS) which is the most severe form of drug allergic reactions as a side effect of Lamictal administration , one week later the patient died due to acute respiratory failure (ARDS) however he was on mechanical ventilation support.