10. Watch your diet: less histamine on your plate
People with hay fever release too much histamine, a substance also found in food. If you have hay fever and eat histamine-rich food, your body will release even more histamine. The following foods are rich in histamine and, therefore, should be (temporarily) avoided: non-fresh fish, shrimps and shellfish, spinach, sauerkraut, mature (aged) cheeses, alcohol (especially red wine and beer), chocolate, tomatoes and citrus fruits.