Colorado Allergy & Asthma Centers, P.C.

Overview1. Second-generation antihistamines (Zyrtec, Claritin, Allegra) and OTC nasal steroid sprays (Flonase, Nasacort) are the evidence-backed first choice for most seasonal allergies, according to AAAAI/ACAAI guidelines.

2. Prescription medication is not automatically stronger. It matters most when OTC options fail, symptoms are severe or year-round, or you have ov...

If you’ve tried antihistamines, nasal sprays, and lifestyle changes but still feel like allergies run your calendar, not the other way around, immunotherapy is usually the next conversation.

This is the point where many patients ask the same question: What are my actual allergy immunotherapy options, and how different are they really?

Let’s walk t...