Allergic Reactions

What are allergic reactions?

Allergic reactions are an adverse local or general response from exposure to an allergen. Mild allergic reaction include rash, hives, itching, runny nose, and red eyes. Certain types of cancer treatments including chemotherapy, targeted therapy and hormonal therapy are associated with allergic reaction.

An allergic reaction or hypersensitivity reaction is an overactive or misdirected immune response that results in local tissue injury or changes throughout the body in response to a foreign substance. It can be caused by many factors, including chemo treatments. Human body’s immune response to a foreign substance can either protect or harm the body. It protects the body from foreign substances such as viruses or bacteria. It can also bring about an exaggerated (hypersensitive) response when previously sensitized individuals are exposed to the same foreign substance.

How bad is my allergic reactions?

Mild: Systemic intervention not indicated.

Moderate: Oral intervention indicated.

Severe: Bronchospasm; hospitalization indicated for clinical sequelae; intravenous intervention indicated.

How to manage mild allergic reaction?

  • Antihistamines and decongestants can help treat certain symptoms, as can nasal sprays.
  • Try to avoid your allergens.
  • Use calamine lotion or cold compresses for itchy skin and skin rash.
  • Take prescribed pre-medications prior to chemotherapy as directed by your healthcare professional.

How to manage moderate to severe allergic reaction?

Call your health care provider you have

What causes allergic reactions?

Allergic reaction
  • Certain types of cancer and cancer treatments (chemotherapy, targeted therapy and hormonal therapy)
  • Pain medications
  • Antibiotics
  • Certain food items (peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk)
  • Insect stings (bee or wasp)
  • Airborne allergens (pollen, animal dander, dust mites and mold)
  • Family history of allergies

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DISCLAIMER: No part of this content constitutes medical advice, opinion, or should be used for medical decision making without consultation with a licenced medical practitioner and under a patient-provider relationship. All information on the website is provided without any claims of accuracy. For full terms and conditions, visit this link. Content curated by the Ankr team.

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