Allergic reactions (hypersensitivity reactions) are inappropriate responses of the immune system to a normally harmless substance. These can include certain foods, pollen, pet dander … or other allergens in the environment.
Your immune system normally adapts to the environment you live in, and only reacts to something foreign. Depending on the type of allergen and the location of exposure to the body, the symptoms may vary. For example:
Allergic rhinitis
- Sneeze
- Severe itching in the nose, eyes and palate.
- Runny nose, stuffy nose
- Red, itchy, painful, and watery eyes (conjunctivitis)
- Urticaria, itchiness
- Food allergies
- urticaria
- Itchy throat
- Swelling of lips, tongue, eyes, face
- Lacrimation
- Wheezing
- Manifestations of anaphylactic shock
Skin allergies (insect stings)
- Swelling (edema) at the site of the insect sting
- Itching or hives (urticaria) all over the body
- Cough, chest tightness, wheezing or difficulty breathing
- Manifestations of anaphylactic shock
Drug allergy
- Itching, hives
- Face swelling
- Runny nose
- Wheezing, wheezing
- Abdominal pain, diarrhea
- Manifestations of anaphylactic shock
Allergy to the sun
The reason is that ultraviolet rays in the sun when directly exposed to the skin will cause cell damage and affect the protein inside. Proteins, after being modified by ultraviolet light, will become foreign substances to the body and be rejected by the immune system and lead to immune system reactions. This usually manifests as small, hard, very itchy skin nodules.
How to prevent allergies?
The sensitivity to allergies of each person is immutable, influenced by genetic factors, race and random interacting factors during fetal development. Therefore, you should find a way to live in peace with it.
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