Medical disclaimer: This page is general health information for education only. It is not medical advice and is not a substitute for diagnosis or treatment by a qualified health professional. It has not been reviewed by a clinician. In an emergency, call 911 or your local emergency number.
What is allergic rhinitis?
Allergic rhinitis happens when an allergy irritates the nose. Pollen is one possible trigger; dust mites, animal dander and mold are others. Symptoms may include sneezing, a runny or blocked nose, itching and watery eyes, according to the NHS guide to allergic rhinitis.
Finding a pattern
Notice whether symptoms change with the season, time spent around animals or a particular environment. A pattern can help the conversation with a pharmacist or clinician, but does not by itself prove an allergy.
Getting help
A pharmacist can advise on treatment options. Seek medical advice if symptoms interfere with sleep or everyday activities, the cause is unclear, treatments are not helping, or asthma is getting worse. Nasal decongestants are not intended for ongoing use; ask about suitability and follow the product instructions.
Questions to bring
- Does this pattern suggest an allergy or another cause?
- Which option is suitable with my other conditions and medicines?
- How should I use it, and when should we review the result?
See all condition guides, use our appointment preparation guide, or read how the immune system works.
Sources & further reading
Sources consulted September 20, 2026. This is a drafting date, not a medical review date.