Allergy Drops

Allergy drops, or sublingual immunotherapy (SLIT), contain a customized serum that is administered by mouth, under the tongue

Allergy drops, or sublingual immunotherapy (SLIT) work in a similar way to allergy shots, or subcutaneous immunotherapy (SCIT). Our Austin allergists will take your medical history, perform a physical examination and perform allergy testing. After evaluating the results and having a discussion with the patients, it may be determined that allergy drops are the best therapy for you.

Our Austin allergists will develop drops that contain a serum customized for your allergic triggers. This serum will be administered daily in gradually increasing doses during the escalation phase, which usually lasts for about two weeks. After this, during the maintenance phase, patients take a prescribed daily dose of drops under their tongues through the end of the allergy season, or three to five years or longer, depending on the treatment strategy.

For seasonal treatment, the escalation phase of treatment with allergy drops usually begins several weeks before allergy season (for example, ragweed season). The maintenance phase continues each day during the entire allergy season.

What are the benefits of allergy drops?

Our Austin allergists always want to choose the best treatment possible for patients, and part of that decision-making process includes educating patients about the therapy. Some of the benefits of allergy drops include:

  • Allergy drops treat the root cause of your allergy problems by inducing a natural immunity or tolerance to the allergen.
  • Drops are proven effective in patients with allergic rhinitis (hay fever), and other allergic disorders.
  • Drops reduce the use of medications to control your allergies.
  • With allergy drops, you avoid the discomfort of injections and associated local reactions.
  • Allergy drops allow treatment to be administered at home, which saves you travel time and the expense of coming into the clinic.
  • There is less potential for a systemic anaphylactic reaction, and allergy drops are regarded as being very safe.

Are there any drawbacks or risks with allergy drops?

Our Austin allergists also want patients to be aware of these potential drawbacks and risks:

  • Most insurance companies do not currently cover the administration of allergy drops.
  • Allergy drops, or sublingual immunotherapy (SLIT), shows a lower range of symptom reduction in comparison to traditional allergy shots (SCIT).
  • Treating multiple allergies at the same time may block or eliminate the efficacy of allergy drops, in contrast to allergy shots, which may successfully and simultaneously treat many allergies.

Our highly trained Austin allergists are well informed about how to treat patients with allergy drops 

Allergy drops are a relatively new form of treatment for allergies, so it’s important that the initial diagnosis and treatment are performed by a knowledgeable board certified allergist. Contact our Austin allergists, Dr. Leath and Dr. Barstow  to learn more about this new, effective treatment.


Meet Dr. Leath

Austin Allergist

Thomas Leath, MD is Board Certified to treat both Adults and Children by the American Board of Allergy and Immunology.

Austin's Board Certified Allergists

3410 Far West Blvd. #146 Austin, TX 78731


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