03/16/2026
Can allergies cause a cough? Yes 🤧
Histamine works like an immune system alarm. When pollen appears, the alarm rings, triggering congestion, postnasal drip, throat irritation, and coughing. The real issue is not the alarm. It is how long it keeps ringing đź””
Seasonal allergies often last as long as pollen does. Genetics influences how efficiently histamine gets cleared through pathways like DAO activity and Methylation 🧬
Histamine can also build from food, gut bacteria, and stress. When the bucket overflows, symptoms expand to bloating, cramps, and coughing.