I handled cactus sap without washing afterwards. It was white and milky. I can't seem to find the cactus anywhere on any reference website. Does anyone know how to nuetralize burning and blistering caused be extended exposure to cactus sap? It was on my skin for two hours, a warming sensation followed, then it became very painful. By the fifth hour it felt burned, then blisters started to form. It has been nine hours since exposure and it's still painful. I have washed repeatedly, but too little to too late. I'm using a cold compress on the affected area. Can anyone tell me if there is some kind of thing I can use to nuetralize the base? Is there a remedy?