Poster 2022: Sublingual immunotherapy in the treatment of allergic rhinitis: series of cases

Background Sublingual immunotherapy (SLIT) has been regarded as a viable alternative to subcutaneous immunotherapy (SCIT) since its introduction in 1986. Several studies have demonstrated the efficacy of SLIT. The safety profile of SLIT is superior to that of SCIT. No fatalities have been reported, and severe systemic reactions are rare. The rate of adverse event (AE) after SLIT is variable in the reported studies, but local AEs are predominant. Systemic side effects such as rhinitis, asthma, urticaria, angioedema, and hypotension make up a minority of the adverse reactions because local reactions (oropharyngeal or gastrointestinal) are most frequently reported.