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Saline rinse / moisturiser (nasal and eye)

Sodium chloride: uses, side effects & precautions

Also known as Saline nasal spray, Sterimar, NeilMed, Normal saline, Saline eye wash.

Ces informations sont fournies à titre indicatif uniquement et ne constituent pas un avis médical. Consultez toujours un professionnel de santé qualifié pour toute préoccupation médicale personnelle. En cas d'urgence, appelez votre numéro d'urgence local.

What it is used for

  • Relieving a blocked or dry nose
  • Clearing mucus and allergens from the nose (including for babies)
  • Rinsing dust or irritants from the eyes (eye-wash products)
  • Moistening dry nasal passages

How it works

Saline is a gentle salt-water solution that loosens and washes away mucus, dust and allergens, and adds moisture to dry nasal or eye tissues. It is drug-free and works by physical cleansing and hydration rather than any active medicine.

How it is taken

Comes as nasal sprays, drops, rinses and eye-wash solutions. Nasal products are sprayed or dripped into the nose, and eye-wash is used to flush the eye. Wash your hands first and keep the nozzle or applicator clean. Use it as the label or your pharmacist directs. Use the correct product for the nose or the eye, not interchangeably.

No doses here on purpose. The right strength and schedule depend on you — only a doctor or pharmacist should set them. Always follow your prescription and the label.

Common side effects

  • Mild stinging or a brief running nose
  • A temporary feeling of fullness
  • Mild eye stinging (with eye products)

Serious effects — get help

  • Signs of an allergic reaction such as facial swelling, rash or breathing difficulty (rare)
  • Worsening nasal or eye pain, persistent symptoms, or signs of infection that need assessment

If a reaction is severe — for example trouble breathing, swelling of the face or throat, or collapse — go to the nearest emergency room now or call your local emergency number. Do not wait for an online consultation.

Interactions to watch

  • Generally none of significance; it is a simple salt solution
  • Can be used to rinse before other nasal sprays (ask a pharmacist about order)

Who should take care

  • Use a nasal product only in the nose and an eye product only in the eye
  • For nasal rinsing, use sterile, distilled or previously boiled and cooled water if you make your own solution
  • Keep the applicator clean to avoid contamination
  • See a clinician if symptoms persist

Frequently asked questions

Can I use saline nasal spray as often as I like?
Saline is gentle and drug-free, so it can usually be used frequently. Follow the product label and ask a pharmacist if unsure.
Is saline safe for babies' blocked noses?
Saline drops or sprays are commonly used to ease a baby's blocked nose. Use a product designed for infants and follow the instructions.
Can I use a nasal saline product in my eyes?
No. Use only a product specifically made and labelled for the eyes, as eye products are prepared differently.
If I make my own rinse, what water should I use?
Use sterile, distilled, or boiled-and-cooled water, never untreated tap water, to avoid introducing harmful organisms.

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