A runny nose usually improves with a combination of simple home strategies: saline rinses, warm liquids, keeping indoor humidity up, and choosing the right over-the-counter medication for the cause. Most cases resolve within a week to 10 days if a cold is to blame, or clear up once you remove an allergen. Here’s how to get relief faster and avoid making things worse.
Figure Out the Cause First
The best treatment depends on whether your runny nose comes from a virus (like the common cold) or from allergies, because the medications that work for each are different. A few quick clues can help you tell them apart.
Colds typically arrive with a sore throat, a cough, and sometimes a low fever. They last 3 to 10 days, though a lingering cough can stretch a couple weeks beyond that. Allergies almost never cause a fever or sore throat, but they do cause itchy, watery eyes and sneezing that can persist for weeks as long as you’re exposed to the trigger. If your nose runs like clockwork every spring or whenever you’re around a pet, allergies are the likely culprit.
Saline Rinses: The Single Best Home Remedy
Flushing your nasal passages with a salt-water solution physically washes out mucus, allergens, and irritants. It’s safe for daily use and works regardless of the cause. Stanford Medicine recommends irrigating each nostril twice a day, though more frequent rinses are fine when symptoms are at their worst.
You can use a squeeze bottle or neti pot. The key is getting the solution right so it doesn’t sting. Mix one teaspoon of non-iodized salt and one teaspoon of baking soda into about one cup (240 mL) of water that’s been boiled and cooled, or use distilled water. Never use unboiled tap water, which can introduce bacteria. Lean over a sink, tilt your head slightly, and gently squeeze half the solution into one nostril. It will drain out the other side. Repeat on the opposite nostril.
Warm Liquids and Steam
Hot fluids do more than just feel comforting. A classic study published in the journal CHEST found that chicken soup increases the speed at which mucus moves through the nasal passages, outperforming plain hot water. Faster mucus movement means your nose clears irritants and pathogens more efficiently. Any warm broth, tea, or soup offers a similar benefit, and the added hydration helps keep mucus thin so it drains rather than sitting in your sinuses.
Breathing in steam from a hot shower or a bowl of hot water can loosen thick mucus and temporarily open congested airways. A few minutes is usually enough. Some people drape a towel over their head to trap the steam, which intensifies the effect.
Keep Your Indoor Air Humid
Dry air thickens mucus and slows your nose’s natural self-cleaning system. When humidity drops below about 50%, the tiny hair-like structures lining your nasal passages become less effective at sweeping mucus along. A cool-mist humidifier in your bedroom, especially during winter months when heating systems dry the air, can make a noticeable difference in how quickly your nose clears. Clean the humidifier regularly to prevent mold growth.
Choosing the Right OTC Medication
Antihistamines for Allergies
If allergies are the trigger, antihistamines are your best option. Your nasal lining releases histamine in response to allergens like pollen or dust mites, and histamine is directly responsible for the sneezing, itching, and flood of mucus. Antihistamines block that chemical signal. Non-drowsy options like cetirizine (Zyrtec), loratadine (Claritin), and fexofenadine (Allegra) work well for daytime use. Older antihistamines like diphenhydramine (Benadryl) are effective but cause significant drowsiness.
Antihistamines are less helpful for a cold-related runny nose, since viruses trigger mucus production through a broader set of inflammatory pathways that histamine blockers only partially address.
Decongestants for Stuffiness
Decongestants like pseudoephedrine (Sudafed) shrink swollen blood vessels in the nasal lining, opening up your air passages. They’re most useful when congestion, rather than a runny nose, is the dominant symptom. Oral decongestants can raise blood pressure, so they’re not ideal if you have hypertension or heart concerns.
Decongestant nasal sprays (like oxymetazoline) work fast but carry a real risk. With regular daily use, some people develop rebound congestion in as few as 3 days, where the spray itself starts causing the stuffiness it was meant to relieve. The general recommendation is to limit spray decongestants to 5 to 7 days at most.
Prescription Nasal Sprays
If your runny nose persists and over-the-counter options aren’t cutting it, a prescription anticholinergic nasal spray can help. It works by preventing the glands inside your nose from producing large amounts of fluid. This type of spray is particularly useful for people with chronic runny noses that aren’t driven by allergies, a condition called nonallergic rhinitis.
How to Blow Your Nose Without Making Things Worse
Blowing both nostrils at once with force can push mucus backward into the tubes connecting your nose to your ears, potentially triggering an ear infection. It can also cause nosebleeds. The better approach: press a finger against one nostril to close it, then gently blow through the open nostril into a tissue. Repeat on the other side. Gentle pressure is the key word. If mucus won’t budge, a saline rinse beforehand loosens things up so you don’t have to force it.
Signs That Need Medical Attention
Most runny noses are harmless nuisances, but a few patterns suggest something more is going on. Yellow-green nasal discharge combined with facial pain or pressure and a fever can point to a bacterial sinus infection that may need treatment. A runny nose that lasts longer than 10 days without improving, bloody discharge, or a nose that keeps running after a head injury all warrant a call to your doctor. For infants under 2 months old, any fever alongside nasal congestion is worth a prompt check, since congestion at that age can interfere with feeding and breathing.