SITTING on the dirt floor, Giyem kept scratching her legs. From the knees down, the 60-year-old woman’s legs are blackened and dotted with blisters from skin irritation. She said it started about one year ago after she began washing her feet at Gupit River near her house in Gupit village, Sukoharjo, Central Java. “Since then, my legs have become very itchy. I was scratching and still itching, until it bled. Some of our neighbors exper