Immunotherapy side effects can affect people in different ways and will depend on how healthy you are before treatment, your type of cancer, how advanced it is, the type of therapy you are getting, and the dose.
The most common side effects are skin reactions at the needle site, which can include pain, swelling, soreness, redness, itchiness and a rash.
You may have flu-like symptoms, such as:
- Nausea or vomiting
- Muscle or joint aches
- Trouble breathing
- Low or high blood pressure
Other side effects might include:
- Swelling and weight gain from fluid retention
- Heart palpitations
- Sinus congestion
- Risk of infection
Immunotherapies may, on very rare occasions, also cause severe or even fatal allergic reactions.
For more information about immunotherapy and its side effects, you should talk to your doctor.