P Sahu1, P Aggarwal2, S Dayal1, V Kumar Jain3. 1. Department of Dermatology, Venereology and Leprology, Pandit Bhagwat DayalSharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana, India. 2. Skin Clinic, Gurgaon, Haryana, India. 3. Dr V. K. Jain Skin Center, Rohtak, Haryana, India.