Antibiotics play a crucial role in combating infectious diseases by effectively targeting and eliminating harmful bacteria. Through their responsible use, we can prevent the spread of infections, alleviate symptoms, and save lives. 

Oral rehydration salts provides a simple yet effective solution for replenishing fluids lost during dehydration, aiding recovery from illness or exertion. It relieve symptoms like fatigue and weakness, particularly from diarrhea and vomiting, making them crucial in hydration therapy, saving lives and preventing dehydration complications.