Once upon a time, about eleventy-fortain years ago, I discovered the hard way that I have a weakness for these diseases: I got them twice a year, every year, between April 17-May12, and any time from the end of November through the New Year. When I moved to Wisconsin, I started getting them every 45-60 days. When I asked my ENT what I could do to dodge these unwelcome visitors, he shrugged. "They're allergy-based. Stay healthy, and be careful."
I eventually became more used to Wisconsin's pollens, and discovered echinacea. It's been six or eight years since I had them. Then boom, someone at work started hacking and sneezing. Of course, the beasties made themselves right at home in the next susceptible person: me.
Several weeks later, I still have nasal drainage and a cough that gets worse with exertion, dust, fumes, smoke, and sometimes nothing. A friend has been teasing me about my abnormal husky alto. And sounding like a cat with a hairball is getting old.