This patient presented with a eczematous patch on right thigh which according to him was more painful than itchy. However he finally agreed that the pain radiating from the back is present for 2 years, but the patch started only two weeks back. Further ‘Sherlock Holmes’ investigation revealed that he carries his mobile phone in his right pocket and he has changed its cover few weeks back! Is this Allergic Contact Dermatitis? I have started him on steroid cream. I have called him for followup after 2 weeks.