Drugs used to quickly reduce the symptoms of allergy
(1) Histaminic drugs
(ii) Adrenaline
(iii) Steroids
(iv) `alpha` -interferons

Options

A. I, ii, and iii
B. I, ii and iv
C. ii and iii
D. I and ii

Answer

To solve the question regarding which drugs are used to quickly reduce the symptoms of allergy, we can analyze each option provided:

1. **Histaminic drugs**: These drugs are actually responsible for causing allergic symptoms. They are not used to reduce allergy symptoms; rather, they are the substances that trigger the allergic response in the body.

2. **Adrenaline**: This is a hormone that can quickly alleviate severe allergic reactions (anaphylaxis) by relaxing the muscles in the airways and tightening the blood vessels, which helps to reduce symptoms such as swelling and difficulty in breathing.

3. **Steroids**: Specifically, corticosteroids are used to reduce inflammation and suppress the immune response. They can effectively reduce allergy symptoms like sneezing, watery eyes, and nasal congestion.

4. **Alpha-interferons**: These are cytokines that are primarily involved in the immune response to viral infections. They are not typically used to treat allergy symptoms.

Based on this analysis, the drugs that can quickly reduce the symptoms of allergy are **Adrenaline and Steroids**.

### Final Answer:
The correct options for drugs used to quickly reduce the symptoms of allergy are:
- (ii) Adrenaline
- (iii) Steroids