Professor Mahmoud Abdallah is a Professor of Dermatology and Venereology at Ain Shams University. He graduated from Faculty of Medicine Ain Shams University in 1995. He spent part of his career in the USA doing research about hepatitis C related dermatoses. Professor Mahmoud Abdallah has many international publications and wrote two book chapters in internationally renown textbooks for Dermatology (Bolognia and Moschella textbooks of Dermatology). His main interest is inflammatory skin diseases including psoriasis, urticaria, atopic dermatitis, hidradenitis suppurativa and medical uses of laser and energy-based devices in treatment of dermatologic diseases.