Which of the following disease is due to an allergic reaction

Options

A. Goitre
B. Skin cancer
C. Hay fever
D. Enteric fever

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks which of the following diseases is due to an allergic reaction. The options provided are goitre, skin cancer, hay fever, and enteric fever.

2. **Analyze Each Option**:
- **Goitre**: This condition is caused by a deficiency in thyroid hormones, not an allergic reaction.
- **Skin Cancer**: Skin cancer is caused by factors such as UV radiation and genetic predisposition, not by an allergic reaction.
- **Hay Fever**: This is also known as allergic rhinitis. It is caused by an allergic reaction to allergens such as pollen, dust, or pet dander.
- **Enteric Fever**: This is caused by bacterial infections (like typhoid fever) and is not related to allergic reactions.

3. **Determine the Correct Answer**: Among the options, hay fever (allergic rhinitis) is the only disease that is caused by an allergic reaction. The release of histamines in response to allergens leads to symptoms similar to those of a common cold, such as sneezing, congestion, and itchy eyes.

4. **Conclusion**: Therefore, the correct answer is **hay fever**.

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