Question 1

Is it allergy season right now?

Accepted Answer

Allergy season in the US typically runs from February through October, with tree pollen peaking in April, grass pollen in May–June, and ragweed in August–September. Use the homepage to get a real-time YES or NO answer for your specific location based on current pollen data.

Question 2

When does allergy season start?

Accepted Answer

Tree pollen season typically begins in February in the South and March–April in the Northeast and Midwest. Grass pollen follows in May, and ragweed season runs from August until the first hard frost, usually in October. The full cycle runs approximately February through October across most of the US.

Question 3

What pollen is high right now?

Accepted Answer

Pollen levels vary by location and season. The homepage shows a real-time breakdown of tree, grass, and weed pollen for your current location, along with a 5-day forecast and a season timeline showing where you are in the annual pollen cycle.

Question 4

How do I reduce allergy symptoms today?

Accepted Answer

The most effective daily steps: take a second-generation antihistamine (Claritin, Zyrtec, or Allegra) before going outside; use Flonase or a nasal steroid spray daily; shower after outdoor time to remove pollen from hair and skin; keep windows closed on high-count days. A HEPA filter in the bedroom measurably reduces overnight exposure, which is when most people accumulate the most pollen.

Question 5

When should I start taking Flonase or a nasal spray for allergies?

Accepted Answer

Nasal corticosteroids like Flonase (fluticasone) take 3–5 days of daily use to build to full effectiveness. You should start before your symptoms peak — ideally 1–2 weeks before your local pollen season hits its worst stretch. Antihistamines like Zyrtec or Allegra work within hours and are useful when you need faster relief, but they work best in combination with a nasal spray for persistent congestion. Not medical advice.

Question 6

My child is sneezing constantly — is pollen high today?

Accepted Answer

If your child is suddenly symptomatic, tree, grass, or weed pollen is likely elevated. Use the homepage to check the current pollen index for your location. On high-pollen days, the most effective steps for kids are: keep windows closed, have them change clothes after outdoor play, and consider a pediatric antihistamine. Consult your pediatrician before starting any medication. Not medical advice.

Question 7

Should I open my windows when pollen is high?

Accepted Answer

On high-pollen days (index 3 or above), keeping windows closed significantly reduces indoor pollen levels. Pollen counts are highest mid-morning on dry, windy days. If you want fresh air, early morning after rainfall is the safest window — pollen is washed down and counts are typically at their daily low. The site includes a 'Should I open my windows?' widget based on your current local conditions.

Question 8

Which months are worst for allergies in the US?

Accepted Answer

April is the peak month for tree pollen across most of the US. May–June is peak grass pollen season. August–September is peak ragweed season. For people allergic to multiple types, May is often the most symptomatic month — tree pollen is still elevated while grass is ramping up. The South has an earlier and longer season; the Northeast and Midwest seasons are compressed into a shorter, intense window.

Pollen	Index	Level	Trend
Tree Oak, birch, and maple carry the spring load. Peaks in April most years.	— / 5	—	—
Grass Follows the trees into May and hangs around through July.	— / 5	—	—
Weed Ragweed takes the late shift — August through the first hard frost.	— / 5	—	—