Sublingual Immunotherapy Specialist

Sandra A. Ho, MD -  - Allergy, Asthma, & Immunology Physician

Avant Allergy

Sandra A. Ho, MD

Allergy, Asthma, & Immunology Physician located in Los Angeles, CA

If you or your child has a fear of injections the idea of frequent trips to the doctor for allergy shots is terrifying. Sublingual immunotherapy is an alternative allergy treatment method available at Avant Allergy in Los Angeles, California. Sandra A. Ho, MD, is an asthma, allergy, and immunotherapy specialist helping patients of all ages to diagnose and treat allergies with allergy drops, allergy shots, and other methods. To learn more about sublingual immunotherapy and see if it’s the right allergy treatment for you, call the practice or use the online booking tool to schedule an appointment.

Sublingual Immunotherapy Q & A

What is sublingual immunotherapy?

Sublingual immunotherapy uses allergy drops instead of injections to treat allergies. Allergists from Avant Allergy provide small drops of your allergen under your tongue to help your immune system improve its tolerance of the substance. 

What are allergies?

An allergy is caused when your immune system considers a substance harmful and overreacts. Common allergens include pollen, dust, mold, pet dander, and grass. Allergic reactions range from mild to severe, and symptoms include:

  • Sneezing
  • Runny nose
  • Coughing
  • Itchy or swollen eyes
  • Itchy nose and throat
  • Skin rash
  • Shortness of breath


If you’re extremely allergic to a substance, you may experience anaphylaxis, a life-threatening condition that causes your airways to constrict. You must seek emergency medical treatment for anaphylaxis.

How does sublingual immunotherapy work?

Immunotherapy is the process of treating allergies over time through increasing doses of the allergen that causes your allergic reaction. Your immune system becomes less sensitive to the allergen and eventually, you won’t experience allergic reactions when exposed to the allergen.

How are allergy drops administered?

If Dr. Ho determines you have an allergy or sensitivity to a specific allergen, you may receive sublingual immunotherapy treatment in the form of allergy drops. She places an allergen extract under your tongue. You hold it there for about two minutes and then swallow it. You repeat this process 3-7 days per week for 3-5 years to effectively build up your immune system against the allergen. 

What are the side effects of allergy drops?

Allergy drops are commonly used to treat dust mites, grass, animal dander, tree pollen, and ragweed allergies. They’re also effective for treating asthma and rhinitis. Allergy drops are in testing for their potential in treating food allergies and mild eczema. Potential side effects of allergy drops include itchy mouth or stomach problems, but they’re usually mild. Anaphylaxis is an extremely rare, but possible side effect.

Don’t let your fear of allergic reactions or your allergy symptoms interfere with your lifestyle. Call Avant Allergy or use the online scheduling tool to schedule an appointment and learn about your allergy treatment options today.