Immunotherapy in parthenium dermatitis

Introduction: Plant dermatitis is most commonly caused by compositae family plants and Parthenium hysterophorus belongs to the same family. Parthenium hysterophorus is the commonest cause of plant dermatitis in India. Parthenium dermatitis is a contact sensitization to parthenium antigen and the response is mediated by a series of cellular and molecular mechanisms. Pathenium dermatitis is caused by dried leaves and trichomes. Materials and Methods: Our study includes the data on 30 patients of parthenium dermatitis. Patch tests with acetone extracts and prick tests with parthenium antigen were done. Results: 30 patients were included in the study out of which 10 were lost to follow-up and only 20 patients completed the study.