Onions contain Quercetin – a natural antihistamine which will help to reduce your bodies reaction to the perceived threat. Elderberries, Kale and Pears also contain the same allergy fighting ‘flavonol’.

An average 100g red onion will have around 33 mg of Quercetin, a white onion around 21 mg, whilst elderberries contain around 42mg per 100g (that’s still quite a few elderberries).

Alternatively, you go for a daily dose of 200mg Quercetin supplement.