Vitamin C is often used to help lower the production of anti-bodies produced as a result of an infection – or an allergy. In this case, the natural remedies aim to lower the production of histamine, which causes symptoms.

Researchers at Arizona State University found that a daily dose of 200mg of Vitamin C reduced histamine levels by 40%.

Vitamins will give you the greatest dose – and Vitamin C tablets with Bioflavonoids are said to have added benefits.