What is a hay fever injection?

The hay fever injection is a steroid treatment, not an antihistamine. Steroids are a powerful anti-inflammatory medication that helps suppress the body’s immune response when it overreacts. They can be used in topical form (in a gel or cream), tablet form or be administered as an injection. The injection helps to suppress symptoms of hay fever without the need for tablets, sprays or other medication.

Does the hay fever injection work?

The hay fever injection can be a huge relief when other treatments have failed. It can eliminate hay fever symptoms for the season so you can finally enjoy the spring and summer months. They can also be extremely convenient as you don’t have to remember to take a pill every day.

How long do hay fever injections last?

The injection doesn’t cure hay fever, it works to temporarily suppress the immune system enough to stop symptoms. Usually, one injection is enough to keep symptoms at bay for the entire hay fever season. Sometimes, however, it’s necessary to have two injections within a few weeks of each other.


The dose required to control severe symptoms is partly related to body weight and heavier subjects will require a larger dose to ease their symptoms. Therapeutic dose for most effective relief is 1mg per kg of body weight, therefore our standard doses administered are from 40mg-80mg per patient per season.