Rainrot can be nothing more than a pesky irritation that comes along with the rainy/wet season of the year. It has the potential to become more serious if not managed. Formerly, diagnosis was limited to evaluating skin scrapings under a microscope, but new technology may improve diagnosis; all at lower cost than cytology.
Source: Equus Magazine, December 2016.
In chronic lesions very few organisms may be seen, so it can take a lot of time to find them or you get a false negative result,” she explains. “If you do not perform this test on a regular basis you may not be as good at identifying the organisms. It is a skill that needs to be maintained.”