geefee Column Series: Easy Biohacks (2) — Simple Nasal Irrigation: An Effective Way to Combat Hay Fever

Many of us suffer from nasal discomfort throughout the year, whether it's hay fever in spring, dryness from air conditioning in summer, or colds and flu in winter. Especially during hay fever season, symptoms like runny nose, nasal congestion, sneezing, and discomfort deep in the nose can significantly impact daily life, leading to difficulty concentrating or sleeping at night.

For such nasal discomfort, "nasal irrigation" has gained attention as an easy self-care method that doesn't rely on medication. This so-called "nasal rinse" is a simple and immediate solution that physically washes away pollen, dust, and mucus attached to the nasal lining. It's widely recommended by ENT specialists as a self-care option for chronic rhinitis, sinusitis, and allergic rhinitis, and is also suitable for those who prefer not to rely too heavily on medication.

Our team (geefee team) and contributing writer Taki have also tried it and feel that their nasal discomfort during the season has significantly improved. Here, we will carefully introduce safe methods that are easy to incorporate into your daily routine.

Benefits and Expected Effects of Nasal Irrigation

Main Benefits

• Clearing away pollen, dust, and mucus helps reduce nasal congestion and the frequency of sneezing.
• It helps maintain the moisture in your mucous membranes, relieving discomfort and improving any roughness caused by dryness.
• It may even be possible to reduce the amount of antihistamines and nasal sprays you need to use.

In ENT clinical settings, nasal irrigation is often recommended as a supportive therapy, and there are reports that it helps alleviate the symptoms of chronic rhinitis and sinusitis. When we tried it consistently for ourselves, performing it once in the morning and once at night, we found that it significantly relieved our daytime nasal congestion.

Easy Nasal Rinsing Methods (Home Edition)

Below are two methods: a simple "hand method" that requires no special equipment, and a "neti pot or spray method" for those looking for a more thorough cleanse.

Preparation (How to Make the Salt Water)

We recommend aiming for a 0.9% concentration, which is close to physiological saline. Here is one way you can prepare it:

• Dissolve about 9 grams of salt (just under 2 teaspoons) into 1 liter of lukewarm water (35–40°C).
• In Japan, tap water is usually perfectly fine to use as is. However, if you have any concerns, using water that has been boiled and cooled, or even purified water, is a safer option for extra peace of mind.

Method A: A super simple method using just your hands (no equipment required)

1. Wash your hands thoroughly with soap.
2. In the bathroom or at the sink, pool some salt water in the palm of your hand (aim for about two cups' worth as a general guide).
3. Face forward, tilt your head slightly downward, and inhale slowly through your nose (keeping your mouth slightly open so you are ready to exhale).
4. The water will flow through your nasal cavity and come out of your mouth, so you can just spit it out.
5. Repeat this a few times, then finish by gently blowing your nose (taking care not to blow too hard).

Method B: Using a Neti Pot or Dedicated Bottle

Using a device allows for a steady flow through each nostril, ensuring a more thorough cleanse. With a neti pot, you pour the solution into one nostril while tilting your head to let it flow out through the other. A dedicated squeeze bottle (saline bottle) makes it easier to reach deep into the nasal passages, and once you get the hang of it, the process is quick and efficient.

Important Considerations and Frequently Asked Questions

Tips for Staying Safe

• Always use clean water. In many regions abroad, people are often advised against using tap water directly. While tap water in Japan is generally safe, if you have a compromised immune system, we recommend using water that has been boiled and then cooled, or a medical-grade saline solution.
• Make sure to stick to the exact amount of salt. If the solution is too concentrated, it can cause pain, but if it’s too weak, it won’t cleanse effectively. As a guideline, aim for a concentration of around 0.9%.
• If you experience any discomfort, severe pain, or bleeding in your ear, please stop immediately and consult an ENT specialist. It is also important to speak with your doctor if you have recently undergone any surgery on your nose or ears.

How often should you use it, and is it safe for babies?

For adults, it is generally common to use this once or twice a day, depending on your symptoms. However, for babies and young children, the application method, concentration, and dosage all need to be carefully adjusted. We recommend consulting with your pediatrician or an ENT specialist before use.

Tips for Staying Consistent

It’s much easier to stay consistent if you turn it into a routine, such as doing it while you’re in the bath or incorporating it into your morning face-washing ritual. In the method our team tried, we found it easy to keep up with just by doing it quickly during bath time.

Summary

Nasal irrigation is a simple and cost-effective way to get immediate relief from hay fever and nasal congestion. By using clean water with the correct saline concentration and sticking to a comfortable routine, you can significantly improve your daily comfort. Our team at geefee tried it ourselves and found that making it a morning and evening habit really improved our sleep quality and made breathing much easier. However, if you have a weakened immune system, are post-surgery, or suffer from severe nosebleeds or ear issues, please consult with a doctor first.

Disclaimer: The information in this article is for general informational purposes only and does not constitute medical advice. Please consult a qualified healthcare professional before making any health-related decisions.