General Discussion
In reply to the discussion: Hives and Time of Year? [View all]LiberalEsto
(22,845 posts)I'm in Maryland, and every year I get allergic itching, asthma and other symptoms starting in January, extending to the end of April. After many years and some allergy testing I've figured out that it's caused by various types of tree pollen.
Even if trees aren't blooming in your immediate area, I have read that pollen can drift for hundreds of miles.
Cedar and juniper bloom much earlier than I thought. The National Allergy Bureau posted low but measurable counts for airborne cedar pollen in Washington D C on Jan. 20 and 29, 2015, in addition to various kinds of molds. Link: http://www.aaaai.org/global/nab-pollen-counts.aspx
Another web site, Pollen.com, has information on what kinds of plants may be blooming in a given area during each season. Here's the link for my part of Maryland.
http://www.pollenlibrary.com/Local/Significant/Allergens/in/Montgomery%20County/MD/
I was surprised to see that there may be pollen from trees like white mulberry during the winter, but I suppose it can drift on the wind.