Beware Even After Hay Fever Settles: Taisho Kenko Navi Publishes New Health Info on 'Sinusitis' on April 22 — Explaining the Often-Overlooked 'Post-Hay Fever Trouble' for Those with Lingering Stuffy Noses and Sticky Mucus
Taisho Pharmaceutical's health site 'Taisho Kenko Navi' released a new article on sinusitis, focusing on post-hay-fever complications. Supervised by Prof. Kimihiro Okubo, it explains symptoms, types, and the importance of early clinic visits.
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- 📰 Published: April 22, 2026 at 20:00
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Taisho Kenko Navi: https://www.taisho-kenko.com
'Taisho Kenko Navi,' a health information site operated by Taisho Pharmaceutical Co., Ltd. (hereinafter referred to as the Company), has published a new health information article regarding sinusitis.
Sinusitis is a disease in which the mucous membrane of the 'sinuses'—hollow spaces deep inside the nose—becomes inflamed, causing a stuffy nose, sticky nasal discharge, loss of smell, and a heavy feeling in the head.
In recent years especially, it is not uncommon for symptoms to worsen or become prolonged after the hay fever season ends, eventually transitioning into sinusitis.
■ Why Sinusitis Now?
When inflammation of the nasal mucous membrane caused by hay fever is prolonged, the 'natural ostium' connecting the sinuses and the nasal cavity becomes easily blocked, making it difficult for secretions to drain. As a result, it is said that the risk of developing or chronicizing sinusitis increases due to the involvement of viruses, bacteria, and allergic reactions.
Even if your hay fever settles down, caution is required if you feel that 'nasal discomfort continues' or 'the cold won't go away.'
■ The Article Explains in Detail Up to the Characteristics of Different Types of Sinusitis
In the article released this time, under the supervision of Dr. Kimihiro Okubo, Professor Emeritus of Nippon Medical School, the following content is introduced in an easy-to-understand manner.
- The mechanism of sinusitis and its relationship with hay fever and colds
- Causes by type of acute/chronic sinusitis (neutrophilic, eosinophilic, etc.)
- Hints for distinguishing based on the nature of nasal discharge and smell disorders
- Treatment options including pharmacotherapy, local therapy, and surgery
- Prevention and self-care that can be done in daily life, such as nasal irrigation and nasal steam
- Q&A answering 'When to see a doctor' and 'Impact on daily life'
In particular, it touches upon intractable types such as eosinophilic sinusitis, conveying the importance of not leaving it untreated based on self-judgment.
■ Don't Leave Nasal Discomfort Untreated, See a Doctor Early
Sinusitis is a disease where improvement can be expected if appropriate treatment is given while it is acute, but if it becomes chronic, treatment may become prolonged. If you have symptoms such as 'sticky nasal discharge lasting for more than a week' or 'not feeling refreshed even after blowing your nose,' it is important to visit a medical institution early.
Taisho Kenko Navi will continue to disseminate health information that leads to consumer awareness and early response through disease information tailored to seasons and lifestyle backgrounds.
April 22 New Health Information
Healthcare Advice by a Specialist Doctor
'Sinusitis' ~ Detailed Explanation of Causes, Symptoms, Treatment, and Prevention ~
https://www.taisho-kenko.com/disease/658/?utm_source=newsletter&utm_medium=post&utm_campaign=20260422kennavi
Supervisor Profile
Professor Emeritus, Nippon Medical School
Dr. Kimihiro Okubo
Professor Emeritus of Nippon Medical School, Endowed Chair of Hay Fever Studies at Nippon Medical School, Chairman of the Okuda Memorial Foundation for Hay Fever Academic Recognition, Director of the Japanese Society of Allergology, and Delegate of the Oto-Rhino-Laryngological Society of Japan. Graduated from Nippon Medical School in 1984. After completing graduate school, he studied at the National Institutes of Health (NIH) in the US. Served as an Associate Professor of Otolaryngology at Nippon Medical School before taking his current position in 2010. Medical Doctor (Ph.D.). Known as a leading expert in hay fever treatment, he has authored numerous books, including 'Quickly Understand the Latest Hay Fever Treatments' (Kodansha) and 'Hay Fever Can Be Cured! A Book to Understand Sublingual Immunotherapy' (Nikkei Publishing).
Taisho Kenko Navi: https://www.taisho-kenko.com
Introduces the causes, symptoms, improvement, and prevention methods of painful symptoms of lifestyle-related diseases and worries that are hard to tell others. Also offers content where you can quickly check worrying symptoms. Specialists will answer various questions in an easy-to-understand manner.
About Taisho Pharmaceutical
Our company was founded in the first year of the Taisho era (1912) with the desire to 'prevent people's illnesses and promote health.'
Since then, for over 100 years, to contribute to the realization of a healthy and rich life for consumers, we have responded to various needs with a wide product lineup ranging from pharmaceuticals to foods, in order to stay close to disease prevention, treatment, and health. Recently, the needs of consumers with rising health consciousness are diversifying, and by continuing to provide high-quality products and services while flexibly responding to such changes, we will stay close to everyone's health.
'Taisho Kenko Navi,' a health information site operated by Taisho Pharmaceutical Co., Ltd. (hereinafter referred to as the Company), has published a new health information article regarding sinusitis.
Sinusitis is a disease in which the mucous membrane of the 'sinuses'—hollow spaces deep inside the nose—becomes inflamed, causing a stuffy nose, sticky nasal discharge, loss of smell, and a heavy feeling in the head.
In recent years especially, it is not uncommon for symptoms to worsen or become prolonged after the hay fever season ends, eventually transitioning into sinusitis.
■ Why Sinusitis Now?
When inflammation of the nasal mucous membrane caused by hay fever is prolonged, the 'natural ostium' connecting the sinuses and the nasal cavity becomes easily blocked, making it difficult for secretions to drain. As a result, it is said that the risk of developing or chronicizing sinusitis increases due to the involvement of viruses, bacteria, and allergic reactions.
Even if your hay fever settles down, caution is required if you feel that 'nasal discomfort continues' or 'the cold won't go away.'
■ The Article Explains in Detail Up to the Characteristics of Different Types of Sinusitis
In the article released this time, under the supervision of Dr. Kimihiro Okubo, Professor Emeritus of Nippon Medical School, the following content is introduced in an easy-to-understand manner.
- The mechanism of sinusitis and its relationship with hay fever and colds
- Causes by type of acute/chronic sinusitis (neutrophilic, eosinophilic, etc.)
- Hints for distinguishing based on the nature of nasal discharge and smell disorders
- Treatment options including pharmacotherapy, local therapy, and surgery
- Prevention and self-care that can be done in daily life, such as nasal irrigation and nasal steam
- Q&A answering 'When to see a doctor' and 'Impact on daily life'
In particular, it touches upon intractable types such as eosinophilic sinusitis, conveying the importance of not leaving it untreated based on self-judgment.
■ Don't Leave Nasal Discomfort Untreated, See a Doctor Early
Sinusitis is a disease where improvement can be expected if appropriate treatment is given while it is acute, but if it becomes chronic, treatment may become prolonged. If you have symptoms such as 'sticky nasal discharge lasting for more than a week' or 'not feeling refreshed even after blowing your nose,' it is important to visit a medical institution early.
Taisho Kenko Navi will continue to disseminate health information that leads to consumer awareness and early response through disease information tailored to seasons and lifestyle backgrounds.
April 22 New Health Information
Healthcare Advice by a Specialist Doctor
'Sinusitis' ~ Detailed Explanation of Causes, Symptoms, Treatment, and Prevention ~
https://www.taisho-kenko.com/disease/658/?utm_source=newsletter&utm_medium=post&utm_campaign=20260422kennavi
Supervisor Profile
Professor Emeritus, Nippon Medical School
Dr. Kimihiro Okubo
Professor Emeritus of Nippon Medical School, Endowed Chair of Hay Fever Studies at Nippon Medical School, Chairman of the Okuda Memorial Foundation for Hay Fever Academic Recognition, Director of the Japanese Society of Allergology, and Delegate of the Oto-Rhino-Laryngological Society of Japan. Graduated from Nippon Medical School in 1984. After completing graduate school, he studied at the National Institutes of Health (NIH) in the US. Served as an Associate Professor of Otolaryngology at Nippon Medical School before taking his current position in 2010. Medical Doctor (Ph.D.). Known as a leading expert in hay fever treatment, he has authored numerous books, including 'Quickly Understand the Latest Hay Fever Treatments' (Kodansha) and 'Hay Fever Can Be Cured! A Book to Understand Sublingual Immunotherapy' (Nikkei Publishing).
Taisho Kenko Navi: https://www.taisho-kenko.com
Introduces the causes, symptoms, improvement, and prevention methods of painful symptoms of lifestyle-related diseases and worries that are hard to tell others. Also offers content where you can quickly check worrying symptoms. Specialists will answer various questions in an easy-to-understand manner.
About Taisho Pharmaceutical
Our company was founded in the first year of the Taisho era (1912) with the desire to 'prevent people's illnesses and promote health.'
Since then, for over 100 years, to contribute to the realization of a healthy and rich life for consumers, we have responded to various needs with a wide product lineup ranging from pharmaceuticals to foods, in order to stay close to disease prevention, treatment, and health. Recently, the needs of consumers with rising health consciousness are diversifying, and by continuing to provide high-quality products and services while flexibly responding to such changes, we will stay close to everyone's health.