Everyday Hygiene and Infection Prevention

Hygiene advice suffers from being too familiar. Everyone has heard it, so it stops registering — which is unfortunate, because these ordinary practices prevent a large share of the infections that circulate through households every year.

Why this matters

Diarrhoeal and respiratory infections remain a substantial cause of illness in India, particularly in children and older adults. Most spread by well-understood routes: hands, contaminated water, unsafe food handling, and respiratory droplets. Interrupting those routes works.

There is a second benefit. Fewer infections means fewer courses of antibiotics, and reduced antibiotic use slows the development of resistance — a benefit that extends well beyond your own household.

What medical guidance says

Handwashing, done properly

Handwashing is the single most effective everyday measure, and most people do it too briefly. Use soap and water, lather for at least 20 seconds, and cover the backs of hands, between fingers, thumbs, fingertips and nails — the areas most often missed. Rinse and dry on a clean towel; damp hands transfer organisms more readily.

The moments that matter most: before preparing or eating food, after using the toilet, after changing a nappy, after coughing, sneezing or blowing your nose, after handling animals or waste, and on returning home. Alcohol-based sanitiser is a reasonable substitute when soap and water are unavailable, but it works less well on visibly soiled hands.

Water

• Use a reliable treatment method — boiling, an appropriate filter, or another approved method. Boiling is effective; bring to a rolling boil and allow it to continue briefly.
• Store treated water in a clean covered container and take it out with a ladle or tap rather than dipping cups or hands.
• Be more careful during the monsoon and after any flooding or supply disruption, when contamination risk rises.
• When travelling, prefer sealed bottled or properly treated water, and be cautious about ice.

Food handling

• Wash hands before and during food preparation.
• Keep raw meat and fish separate from foods eaten uncooked, and use separate boards and knives.
• Cook thoroughly, especially meat, poultry, eggs and fish.
• Do not leave cooked food at room temperature for long periods, particularly in warm weather. Refrigerate promptly and reheat thoroughly.
• Wash fruits and vegetables in clean water before eating raw.
• Keep the kitchen dry and clean cloths frequently; damp cloths spread organisms efficiently.

Respiratory etiquette and household basics

• Cover coughs and sneezes with a tissue or your elbow, never your palm, and wash hands afterwards.
• Stay home when you have a fever or an acute respiratory illness where you can, and keep distance from infants and elderly relatives.
• Ventilate rooms; airflow reduces indoor transmission.
• Clean frequently touched surfaces — door handles, taps, switches, phones — regularly.
• Do not share towels, razors, toothbrushes or nail cutters.
• Keep vaccinations up to date; they prevent infection rather than treating it.
• Cover wounds with a clean dressing and keep them clean and dry.
• Manage standing water around the house, which allows mosquitoes to breed.

Ordinary soap is sufficient for everyday handwashing. Antibacterial products are not necessary for routine home use, and technique and duration matter far more than the product.

When to consult a doctor

See a doctor for diarrhoea lasting more than two days in an adult, or sooner in a child or older adult; blood in the stool; fever that is not settling; persistent vomiting preventing fluids; or a wound becoming more red, swollen, painful or discharging.

Seek urgent care for signs of significant dehydration — very little urine, marked drowsiness, confusion, fainting — for a stiff neck with fever and severe headache, or for difficulty breathing. In an infant, seek care early rather than waiting.

Do not start antibiotics for diarrhoea or a respiratory illness on your own. Most such episodes are viral or self-limiting, and unnecessary antibiotics cause harm without helping.

Related reading: The risks of self-medication