The number one side effect of sublingual immunotherapy (SLIT) is significant allergy relief and reduced dependence on antihistamines and nasal sprays.
Sublingual immunotherapy is effective for 85% of patients. It requires placing a small amount of allergen extract under the tongue. It is a safe and effective alternative to allergy shots, with fewer side effects. However, like any medical treatment, SLIT can cause some side effects, which are generally mild and temporary. If these symptoms occur, the first step is to reduce your dosage — you don't have to stop immunotherapy!
Rare side effects (affecting less than 1 in 10,000 people) include:
Short-term (less than 15 minutes) irritation or tingling in the mouth or throat
Short-term increase in allergy symptoms for the first few weeks, as the body acclimates to treatment
Mild stomach discomfort or nausea for the first few weeks, as the body acclimates to treatment
Although these side effects are typically mild, it is important to monitor them and report any concerns to your Wyndly doctor.
If you ever have an emergency or think you are experiencing anaphylaxis, call 911.