When to start sublingual immunotherapy?
- 奏良 澁谷
- Jan 22
- 2 min read

1. Hay fever: Ideally, start before the pollen season.
Sublingual immunotherapy for hay fever (especially cedar pollen and grass pollen) is generally started 3 to 4 months before the pollen season begins (June to autumn). In the case of cedar pollen, it is said that it is best to start treatment around autumn in preparation for the start of the season from winter to spring. By starting treatment early, the immune system will gradually become accustomed to the allergens, further increasing the possibility of alleviating symptoms during the season.
2. Work at your own pace and convenience!
Sublingual immunotherapy for perennial allergies such as dust mite allergies has no particular starting time restrictions, so you can start at your own pace and convenience. Unlike hay fever, perennial allergies do not show symptoms influenced by the season, so it is said that it is best to start when symptoms are relatively calm.
3. Fit it into your school or work schedule
Sublingual immunotherapy requires long-term treatment, so it is important to start when you have time for school or work . In the early stages of treatment, your body gradually gets used to the allergens, so you may experience mild side effects. Therefore, it is advisable to start treatment in an environment where you can comfortably engage in the treatment.
4. Plan your pre-season preparations
Especially in the case of hay fever, it is important to plan "the best month to start treatment" according to the season. Before the hay fever season, the number of patients wanting to start treatment increases, so it may be difficult to make an appointment with a doctor. In order to start treatment smoothly, it is a good idea to make plans with your doctor during the off-season. Also, by consulting early, it will be possible to create a more individually appropriate treatment plan.
We recommend consulting with your doctor and making a plan early so you can start treatment before the season begins.
5. Start when the moment strikes
Sublingual immunotherapy is expected to have a long-term effect, so a good starting point is when you think, "I don't want to suffer through hay fever season anymore!" Once you actually start treatment, it often takes time to see relief from symptoms, so by starting early, you can expect future improvement in symptoms.
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