Medications compared

Allergic rhinitis medications fall into a few well-understood classes. Know what each does, when to use it, and how to avoid the common mistakes.

5 min readEvidence-basedUpdated 2026

Getting the most from your nasal spray

  1. Blow your noseClear the passages so the medicine can reach the lining.
  2. Shake and primeShake the bottle and pump a few sprays into the air until a fine mist appears (per label).
  3. Aim away from the middleTilt your head slightly forward, spray toward the outer corner of the nostril, not the septum.
  4. Don't sniff hardBreathe in gently — hard sniffing sends the medicine down the throat instead of the nasal lining.
  5. Be consistentDaily preventive sprays need daily use; benefit builds over several days.

Safety notes worth remembering

Nasal decongestant sprays: use for no more than 3–5 consecutive days. Longer use causes rebound congestion — a worse, harder-to-treat blockage.

Oral decongestants: can raise blood pressure, speed up the heart and disturb sleep. Check with a pharmacist or doctor if you have heart conditions, high blood pressure, glaucoma or an enlarged prostate.

Sedating antihistamines: some first-generation antihistamines cause drowsiness — avoid driving or operating machinery, and prefer non-sedating options during the day.

Pregnancy, breastfeeding and children: many options are safe, but always confirm with your clinician or pharmacist — and read the label for age limits.

Brand names differ by country. This overview is educational — your clinician's advice and the product label always take precedence.

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