review of etiological factors in erythema multiforme

A total of forty nine patients with erythema multiforme was studied. Twenty six patients were male and twenty three were females with a mean age of 22.7 years. In 65.3% of the patients, erythema multiforme was preceded by simplex facialis. The latent period between the herpes simplex infection and erythema multiforme ranged from 2-14 days with a mean of 5.5 days. The post-herpetic erythema multiforme was recurrent in 28.1% of the cases