Allergy Season Predictor Calculator

Tree pollen: spring (Feb-May). Grass pollen: late spring to summer (May-July). Ragweed: late summer to fall (Aug-Oct). Mold: varies, often summer-fall. Seasons vary by region and are getting longer due to climate change.

Second-generation antihistamines (cetirizine, loratadine, fexofenadine) are first-line for mild symptoms. Nasal corticosteroid sprays (fluticasone, mometasone) are most effective for moderate-severe nasal symptoms. Consult your healthcare provider for personalized recommendations.

See an allergist if: OTC medications don't control symptoms, symptoms last more than 3 months, allergies trigger asthma, you want allergy testing, or you're interested in immunotherapy (allergy shots or sublingual tablets).

Keep windows closed during high pollen days, use HEPA air filters, shower and change clothes after outdoor activity, avoid outdoor exercise in early morning (peak pollen), wear sunglasses outdoors, and consider a nasal saline rinse.