Allergies

Allergies are an overreaction of the immune system to a specific substance, such as a food, medication, or environmental trigger. When an allergen enters the body, the immune system mistakenly identifies it as harmful and releases chemicals to defend against it. This can lead to a range of symptoms, from mild to severe, and can affect various parts of the body.

Common allergens include:

1. Food allergies : An allergic reaction to certain foods, such as peanuts, tree nuts, milk, eggs, fish, shellfish, wheat, and soy. Symptoms can range from mild to severe and include hives, itching, swelling, stomach cramps, diarrhea, and even anaphylaxis.
2. Environmental allergies : Allergies to substances like pollen, dust mites, mold, and pet dander. Symptoms can include sneezing, congestion, runny nose, itchy eyes, and skin rashes.
3. Skin allergies : Allergies to substances like nickel, latex, or fragrances. Symptoms can include redness, itching, swelling, and rashes.

1. Medication allergies : Allergic reactions to certain medications or substances. Symptoms can range from mild to severe and include hives, itching, swelling, and anaphylaxis.
2. Contact dermatitis : Allergies to substances that come into contact with the skin. Symptoms can include redness, itching, swelling, and rashes.

Symptoms of an allergic reaction:

1. Hives or itchy skin
2. Swelling of the face, lips, tongue, or throat
3. Stomach cramps
4. Diarrhea
5. Vomiting
6. Runny nose or congestion
7. Sneezing and coughing
8. Itchy eyes, nose, and throat
9. Watery or red eyes
10. Shortness of breath or wheezing
11. Fast or irregular heartbeat
12. Dizziness or fainting

If you experience any of these symptoms, it's essential to seek medical attention promptly.