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Antihistamines are used to help with the symptoms caused by allergies, such as a runny nose, watering eyes or sneezing.

The right antihistamine medication can provide welcome relief from allergies that will allow you to go about your day as normal.

Common allergy symptoms that antihistamines can treat include:

  • Hay fever
  • Conjunctivitis
  • Rhinitis
  • Eczema
  • Hives
  • Insect Bites

If you’re suffering from an allergy and need antihistamines to help relieve your symptoms, a video chat on your smartphone, tablet or desktop with one of our doctors can help you. They’ll talk to you about your allergy, explain the possible side effects of your medication and write a prescription that you can collect from a pharmacy of your choice.

Some of the most common antihistamines include:


How do antihistamines work?

Your body produces the chemical histamine as a way to protect itself from infection. 

It's a vital part of your immune system and is used to help fight of bacterial or viral infections by releasing histamine into the surrounding cells, which causes blood vessels to expand.

This process, known as inflammation is a useful way to increase the blood flow to the area, transporting a lot of immune cells and speeding up the healing process.

While it's usually a positive sign your body's fighting off the infection, in people who have an overactive immune system, their bodies treat pollen and other allergens as a threat and try to defend against them.

In cases like these, antihistamines are used to block the effects of histamine - preventing inflammation by affecting the receptors within cells.