Tons of data that the drops are an improvement over shots, if only for the patient experience!
“Patients who have done [allergy drops] and finished a course are now free of taking any allergy medications and they don’t have symptoms anymore.” Dr. Sandra Lin, video interview, Sublingual Immunotherapy (SLIT) for Allergy Treatment: Johns Hopkins | Q&A, author of Efficacy and Safety of Subcutaneous and Sublingual Immunotherapy for Allergic Rhinoconjunctivitis and Asthma (2017)
Video: https://www.youtube.com/watch?v=dpWomI4iPLY Paper: https://pubmed.ncbi.nlm.nih.gov/28964530/
Aqueous allergy drops are both safe and effective for environmental allergies (aka allergic rhinitis): - This has been proven through 30 years of data published by leading allergists in key journals, and confirmed in 2011 independent Cochrane review Learn more: https://pubmed.ncbi.nlm.nih.gov/21154351/
Aqueous allergy drops have a better safety profile than allergy shots - Unlike shots, there has never been a documented fatality to allergy drops in 30 years of use - The risk of a systemic reaction is thought to be 1 per 100 million doses or 1 per 526,000 treatment years Learn more: https://pubmed.ncbi.nlm.nih.gov/22150126/
Allergy drops are equally as effective as allergy shots - They have widespread use in Europe (up to 80% of the immunotherapy market in some countries) - Comparison studies by leading allergists have shown both allergy shots and allergy drops to be effective but no clear superiority of one mode over the other. Learn more: https://pubmed.ncbi.nlm.nih.gov/23557834/ https://pubmed.ncbi.nlm.nih.gov/26853126/