Howard I. Maibach is a dermatologist with expertise in treating contact dermatitis (a rash caused by touching an irritating substance) and occupational dermatitis (a rash resulting from workplace exposure to an irritating substance). He earned his medical degree from Tulane University School of Medicine. He completed a residency as well as a fellowship in dermatology at the Hospital of the University of Pennsylvania. He has served on the editorial boards of more than 30 scientific journals. His specialties include allergic skin disorders and skin conditions caused by exposure to toxic substances. He also has an interest in dermatopharmacology, the study of medications for skin disorders.