Allergen immunotherapy (SCIT or SLIT) is a 3–5 year treatment. The build-up phase (progressively increasing doses) typically takes 3–6 months, followed by a maintenance phase with stable monthly doses (SCIT) or daily sublingual doses (SLIT) for 3–5 years in total. The evidence is clear: patients who complete the full course achieve significant, sustained reduction in allergy symptoms and medication requirements — with benefits that persist for years after completing treatment. For patients with moderate-to-severe allergic rhinitis or allergic asthma driven by a specific allergen, immunotherapy is the most cost-effective long-term treatment available. At Pulmovista Clinics, I discuss the commitment and expected outcomes with every patient before initiating AIT.
