Allergy
Allergy is an immune system reaction to normally harmless substances called allergens. Common triggers include pollen, dust mites, certain foods, medications, and insect stings. Symptoms may range from mild sneezing to severe life-threatening reactions such as anaphylaxis.
🚨 Emergency – Seek Immediate Medical Help
Call emergency services if allergy causes:
- Difficulty breathing or wheezing.
- Swelling of the lips, tongue, or throat.
- Rapid drop in blood pressure.
- Severe dizziness or loss of consciousness.
📞 Consult a Doctor
See a healthcare provider if you experience:
- Frequent sneezing, runny nose, or nasal congestion.
- Persistent itchy eyes or skin rash.
- Recurring hives or swelling.
- Symptoms after eating certain foods.
Common Symptoms & Causes
| Symptom | Possible Cause |
|---|---|
| Sneezing, runny nose, itchy eyes | Hay Fever (Allergic Rhinitis) |
| Red, itchy skin rash | Contact Dermatitis |
| Hives or raised skin bumps | Urticaria |
| Wheezing or breathing difficulty | Allergic Asthma |
| Swelling of face or throat | Severe Allergic Reaction |
Common Allergy Triggers
Pollen: Common cause of seasonal allergies.
Dust Mites: Tiny organisms found in bedding and carpets.
Pet Dander: Skin flakes from animals.
Common triggers include peanuts, milk, eggs, soy, wheat, and shellfish.
Symptoms may include swelling, vomiting, or skin reactions.
Insect Stings: Bees or wasps may cause severe reactions.
Medications: Some antibiotics or drugs can trigger allergic responses.
Diagnostic Procedures
Allergy Skin Test
Identifies specific allergens by observing skin reactions.
IgE Blood Test
Measures immunoglobulin E antibodies related to allergies.
CBC Test
May show elevated eosinophils associated with allergic reactions.
Patch Test
Detects delayed allergic skin reactions.
