No, there is no good scientific evidence to support the claim that chlorophyll helps allergies.
While chlorophyll is sometimes promoted as a treatment for hay fever and other allergic conditions, scientific studies have not demonstrated its effectiveness for these purposes. The assertion comes from anecdotal reports, not rigorous research.
It's important to consult with a healthcare professional for evidence-based allergy treatments. They can recommend appropriate medications, allergy shots, or lifestyle modifications to manage your allergy symptoms effectively.