What is Sublingual Immunotherapy?

Sublingual Immunotherapy

Sublingual Immunotherapy (SLIT) refers to a treatment for allergies which can improve allergy symptoms, reduce the need for medications to treat the symptoms, and also have long-term effects in preventing the development of new allergies. At AllergenIQ, we feel it’s the perfect treatment to follow our at-home testing since it’s simple, easy, and quick to administer yourself at home.

Immunotherapy also suppresses the allergic response through increased production of antibodies, conditioning your body to the allergens that cause your suffering.

How Effective Is Sublingual Immunotherapy?

The outcome of immunotherapy is commonly an early reduction in clinical symptoms during treatment, and its long-term effects even after discontinuation of SLIT is the potential prevention of new allergies. Unlike more traditional methods like symptomatic treatment or allergen avoidance, sublingual immunotherapy works to address the core cause of your suffering, conditioning your body to react appropriately to allergens.

It’s Efficient and Convenient.

Sublingual Immunotherapy (SLIT) is an alternative way to treat allergies without injections and is well-suited to the needle-phobic, children, travelers, and the elderly. After your consultation with our board-certified allergists, a completely custom immunotherapy program will be tailored to your specific needs, putting you on the fact-track to lasting relief from your allergies.

Is Sublingual Immunotherapy Safe?

Most clinical trials and surveys published over the past 20 years show that SLIT is relatively safe and effective for the treatment of allergies to dust mites, grass, ragweed, cat dander,  and tree pollen.

Side effects that may appear in both children and adults are usually local and very mild, most often occur early in treatment as the body adapts to the therapy, and quickly dissipates.

Who Can Benefit From Sublingual Immunotherapy?

Children and adults can both receive SLIT. If you are an older adult and considering SLIT but have medical conditions such as severe asthma, high blood pressure, or other serious illnesses, please discuss the therapy with your allergist or physician first.

Regardless of your health condition, you and your allergist or physician should discuss Sublingual Immunotherapy, including:

  • The type of symptoms you are having, the severity and whether they are seasonal or year-round
  • Whether medications and/or environmental controls are helping your allergy symptoms
  • Any concerns about long-term medication use
  • The commitment to treatment (sublingual treatment typically requires a daily dose)

How Does Sublingual Immunotherapy Work?

Sublingual Immunotherapy works very much like a vaccine. You receive gradually increasing amounts of allergens, leading the body to develop immunity or improved tolerance to the allergens.

Sublingual Immunotherapy occurs in two phases:

  • Build-up Phase. This involves receiving increasing amounts of allergens once a day for a short time ranging from a few days to a few weeks.
  • Maintenance Phase. This begins when the effective maintenance dose has been reached, based on your allergen sensitivity and response to the Build-up Phase. During the Maintenance Phase, the strength of the allergens is higher and at an optimal concentration and effectiveness.

A Convenient, Effective Treatment.

Ultimately, sublingual immunotherapy provides our patients with the ability to receive fully-customized treatment, delivered directly to their home.  


Don’t let your allergies dictate your life any longer.

Take our simple quiz to see if AllergenIQ at-home allergy testing is right for you. 

A journey to a happier, healthier you is only a few clicks away. 

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