The Pros and Cons of Nasal Sprays: From Vaccines to Addiction

Nasal sprays are not just for allergies anymore. They are already being used to treat migraines, depression, opioid overdose, and deliver flu vaccines. In the future, nasal sprays could be used for treating rapid heartbeats, COVID, severe allergic reactions, and delivering vaccines. Nasal sprays have advantages such as easy application and faster absorption into the bloodstream. However, there are challenges like nosebleeds and difficulty penetrating thick mucus. While nasal sprays show potential for antiviral use, more research is needed before they become a reliable option for vaccines.