Could organ damage due to a bactrim hypersensitivity reaction result without the blistering associated with stevens-johnson syndrome if other symptoms such as facial swelling were present?

Facial edema alone with bactrim allergy does not fit the clinical manifestations of SJ syndrome. Take care.

Stevens-Johnson Syndrome is a life-threatening well-described reaction provoked by severe immune reactions, due to a number of medications. Have no clue why you would ask your question. Perhaps you might find out more information from the doctor who provided your Bactrim.