Sometimes scratching relieves isolated itches, hence the existence of devices such as the back scratcher. Sometimes his head or nose itches when any trouble is going to happen. They usually have sensations of moving itches and crawling insects. The sensations last for many days and the sting itches. As the poison develops, the woman's body itches until she has poisoned someone. Overexposure to jade leads to The Itches, a condition causing madness and eventual death. It itches mildly at times, and strongly at others. Selvakumar itches for a chance to get back at him. Use of juice of Mikania as a curative agent for itches is reported from Malaysia.