Luckily they come off pretty easy. A water soaked towel laying over the area will soften them to the point they just wash right off. But you have to soak them first, otherwise it takes for ever to remove them. We live on the coast and so far have not seen them but Leesburg is always a BUGGY trip every year. I usually take A soaked towel in a large zip lok and try to get most of them off when we arrive downtown and then spend awhile after arriving back home that night. Wore a perforated leather jacket one year, it finally took a toothpick sticking it thru each perforation to remove them.