A man aged 42 years presented with the complaints of frequent and burning micturition. He has constant intolerable urge to urinate, but passes a few drops at a time, which is mixed with blood. If he drinks even a small quantity of water it will increase pain in his bladder. He suffers from burning, cutting pains in urethra during micturition with violent tenesmus and strangury. He feels disgust for everything; drink, food, tabacco. On examination he has vesicles all over body with sunburns.
What is your similimum?