There are plenty of over-the-counter medications for seasonal allergies, and a primary care doctor … Commonly Abused Drugs; Taking Meds When Pregnant Drug Basics & Safety. Cottonwood trees are found primarily in North America, with a large percentage in the Midwestern United States. They thrive alongside streams, rivers, and lowland areas. Find doctors who treat near Cottonwood, AZ. See reviews, photos, directions, phone numbers and more for the best Physicians & Surgeons, Allergy & Immunology in Cottonwood, AZ. cottonwood allergy symptoms. Allergy Clinic in Cottonwood on YP.com. Rather, common irritants are from trees such as alder, birch, cottonwood and sycamore. Cottonwood, Poplar Genus Location The shaded areas on the map indicates where the genus has been observed in the United States. A 39-year-old member asked: ... 56 years experience Family Medicine. Learn more about cottonwood allergy … Dairy allergy: You mean cows milk allergy.In neonatal period when cow based formula is used the … Click the map to see a full scale version of these allergy areas.