Injection Site Reactions

This article only provides general information and not substitute speaking to a medical professional.

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Injection site reactions are a common side effect and often a mild irritation. They can appear and disappear spontaneously throughout your treatment journey. Slight redness or an itch that is not getting worse is typically fine to leave alone, however tenderness, increasing in size, swelling, fever or any form of discharge can be signs of infection.

To help ease injection site reactions, please ensure you:

  • Change your injection sites
    • If the reaction is occurring on your abdomen, try injecting in the thigh or vice versa
  • Allow the injection to warm up by taking it out of the fridge 30 minutes before injecting
    • This can reduce a stinging sensation as well
  • Ice the site before injecting
  • Place a cold, moist towel on the site
    • If you would like to use an ice pack, make sure you put a thin cloth between the ice pack and your skin, and use for no more than 20 minutes at a time
  • Avoid bath products that contain sodium lauryl sulfate and fragrance
    • Try gentle, soap-free washes

If you would like to chat to our Medical Support team, please message them here.


You should go to a hospital's emergency department or call triple zero (000) for an ambulance if you experience the following alongside irritation at your injection site: Fever >38 degrees, severe pain or swelling at the injection site, blistering or oozing at the injection site, muscle aches, upset stomach (nausea), headache or dizziness, severe itching or a hives breakout, swelling of the lips, tongue or throat or symptoms that get worse instead of better.