Allergy Drops

Advantages of Allergy Drops (Sublingual Immunotherapy)

Allergy Drops


Administered at home, allergy drops, or SLIT (Sublingual Immunotherapy), avoid taking time off from work or school for regular office visits to your Texas allergist required by shots. This is convenient for patients who do not have a “normal” schedule are unable to make regular trips to the allergist's office for allergy shots. This method is also pain-free.


Allergy drops are comparable in cost to the co-pay for the typical medications or shots of most patients, but stops after five years, while the cost of others could be indefinite. Each patient is judged on their unique circumstances, their reactions, history and insurance coverage.

Safe for Most Patients:

SLIT can be started beginning at the age of two and thereon up to seniors. Allergy drops are usually easier for our Texas patients and have fewer adverse reactions than shots. Allergy drops are also easier for most patients to remember to take, allowing them to not have to go back in their treatment process. SLIT also offers a better safety profile. The incidence of anaphylaxis to shots is three in one million. We have had no reports of severe reactions while using our allergy drop protocol. SLIT is all-natural – unlike medications – and is made from simple extracts of pet dander, pollens, dusts and mold.


The results shown in the latest meta-analysis, performed by the world renowned Cochrane Review (2009), more than 2300 patients on sublingual immunotherapy had a significant reduction in symptom scores and medication use for both allergies and asthma without severe reactions or anaphylaxis. Allergy drops are endorsed by the WHO (World Health Organization) and the ARIA (Allergic Rhinitis and it Impact on Asthma) guideline. Sublingual Immunotherapy eliminates allergic reactions, as opposed to masking symptoms like some medications do. This is an effective treatment for allergies because the patient uses it daily and the onset of action is generally quicker (within 4 weeks). Allergy drops produce fewer unfavorable reactions than shots.

The idea behind any kind of immunotherapy, including allergy drops and allergy shots, is to expose the body to small amount of substances that cause allergies. After several months, those concentrations will increase and there will be a decrease in symptoms.
Allergy Drops have been used for over 100 years, and used under the tongue.
There is a significant amount of scientific evidence from the last thirty years
that shows how effective and safe SLIT is.
Most patients will have fewer symptoms and start to build up immunity within a few weeks of the beginning of their treatment with allergy drops. For some patients, it will require a few months before they feel results from their treatment. Your dosing schedule will be customized by our Texas allergists depending on the specific allergies. It is possible to take your entire daily dose at once or to take it at two or three different times throughout the day.

Potential Side Effects

There are potential adverse reactions and side effects are associated with treatment through allergy drops. They are nearly always very mild and do not necessarily require treatment at all.
More than 135,000 patients over the past 40 years using our protocol have had no severe reactions.

Most reported reactions complain of tingling or itching in the mouth or mild swelling under the tongue. This commonly occurs during the first several days of treatment (in up to 40% of patients). We suggest treating with an antihistamine and keeping the same dose of drops until the reaction stops occurring.

Though uncommon, some other adverse reactions may include stomach ache, nausea and wheezing in asthmatic patients. Severe allergic reactions such as anaphylaxis are extremely rare and much less common than with treatment with allergy shots. Therefore, allergy drops are safe to be given at home.

Patients with asthma or patients using beta blockers can also be treated with allergy drops safely. As always, asthmatics should take their medications to keep their asthma under control, but the chance of significant asthma exacerbation is much less when using allergy drops as treatment than with using allergy shots.

Learn More About Allergy Drops

Patients can switch from taking drops to shots, or from taking shots to drops. Before switching, we will usually want to repeat your allergy testing. If you are interested in allergy drops, or want more information, call us or email us today to schedule your visit with our Texas allergist or ask any questions.