For some of us, our bodies tell us it’s hay fever season in Japan before we have had a chance to check our calendars. For others, the dreaded season causes so much discomfort that we begin to take our standard regimen of antihistamines weeks prior to the onset of our symptoms. For many international residents, hay fever kicks in suddenly after years of living in the country. Many of us also take allergy medicine year-round due to pets or other environmental factors. 

With red and itchy eyes, blocked sinuses and sneezing, we all venture to the nearest drug store and find ourselves staring at a wall of random medications.

Of course, it is always best to speak with your doctor about which medication is right for you and for medical advice, but in this article, we outline the hay fever and allergy medicine you can find at Japanese drugstores. Some information may have changed since original publication date*, and the prices do not include the 10% sales tax.

1. クラリチンEX (Claritin EX)

Summary: For those of us familiar with the common allergy medication Claritin, this is the Japanese version of that! This antihistamine comes in a pill form that helps with hay fever, house dust and pet allergies. It is intended for children and adults aged 15 and older. Both a licensed physician here in Japan, as well as drug store staff, agreed that this medication is one of the best all-around allergy medications you can purchase in-store. 

Dosage: It should be taken once per day, around the same time and after a meal.

Price: ¥1,380 (7 pills) or ¥1,980 (14 pills)

Get it here

Considerations: The box indicates that this medication contains lactose. Additionally, those breastfeeding should avoid this medication as well as those with liver disease, kidney disease or epilepsy.  

2. アレグラFXジュニア (Allegra FX for Kids)

Summary: If you are familiar with the allergy medication, Allegra, this is the Japanese version, but for kids. It is intended for children between 7 and 14. This medication comes in pill form and was recommended by the drug store staff as the best all-around allergy medication for children. 

Dosage: For kids between 7 and 11 years old, take two times a day. One pill at night and one in the morning (daily dose 2 pills). For kids between 12 and 14 years old, take two pills twice a day, in the morning and in the evening (daily dose 4 pills).

Price: ¥1,180 (16 pills)

Get Allegra FX for Kids here

Get Allegra FX for Adults here

Considerations: The box does not indicate any considerations besides the caution not to breastfeed while taking it, or if you are allergic to common ingredients found in the medication. 

3. ナザールα (NAZAL) and ナザールαクール (NAZAL Cool)

Summary: These nasal sprays come in a normal version (ノーマル) and a cool version (クール). They are used to treat seasonal allergies caused by pollen: stuffy nose, runny nose, sneezing. 

Dosage: Adults 18 and over, usually twice a day in the morning, in both the left and right nasal passages.  The box indicates that you can use it up to 4 times a day (8 sprays in all), but you need to make sure each time is 3 hours apart.

Price: ¥1,780 (10ml spray bottle)

Get Nazal here

Get Nazal Cool here

Considerations: This medication should not be used for more than 3 months in a year. The box indicates that those with systemic fungal disease, hypertension, tuberculosis, diabetes, recurrent epistaxis, asthma, glaucoma or infection should not take this medication; as well as those who are pregnant or may become pregnant. If you need to use this for more than 3 months of the year, discuss options with your doctor.

Reducing Hay Fever Symptoms At Home

Air purifiers can be effective indoors during hay fever season, helping to reduce symptoms by filtering out airborne allergens such as pollen, dust mites, and pet dander. Models equipped with HEPA (High-Efficiency Particulate Air) filters, like the Levoit Core 300 Air Purifier, are especially beneficial, as they can capture tiny particles that trigger allergic reactions.

To maximize effectiveness, keep your windows closed while using the purifier, choose a model appropriate for your room size, and regularly clean or replace filters. Using an air purifier consistently throughout allergy season can create a cleaner, more comfortable indoor environment, reducing sneezing, congestion, and those itchy eyes!

Wearing a Mask to Reduce Hay Fever Symptoms Outside

Masks help by filtering out airborne allergens like pollen, which is a major trigger for hay fever. It’s common in Japan for people to wear masks when out and about. N95/FFP2 masks offer good protection as they can filter out up to 95% of airborne particles, including pollen.

Feature image: kanaloco.jp | Medicine images Lillian Loescher
**Article originally published April 2022, edited for 2025