What do you understand by the term chemotherapy ?

Explanation

**Step-by-Step Solution:**

1. **Definition of Chemotherapy**: Chemotherapy refers to the branch of chemistry that focuses on the treatment of diseases through the use of chemical substances.

2. **Purpose of Chemotherapy**: The main purpose of chemotherapy is to combat diseases, particularly infections and cancer, by using specific chemicals that can target and eliminate harmful cells or pathogens.

3. **Examples of Chemotherapy**: A common example of a chemical used in chemotherapy is Paracetamol, which is utilized for the treatment of fever and pain. This illustrates how certain chemicals can be employed to alleviate symptoms of diseases.

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