Food Poisoning and Stomach Flu: Staying Hydrated and When to Worry

If you have spent the last few hours running to the bathroom, feeling sick to your stomach, and wondering whether that roadside meal or the office lunch was to blame, you are not alone. Almost everyone in Pune goes through a bad stomach at some point, often after a change in the water, a heavy monsoon week, or food that sat out a little too long.

The good news first. Most of these episodes, whether we call it food poisoning or stomach flu, settle on their own in a few days. Your job during that time is simple but important: keep enough fluid going in, rest, and watch for a small number of warning signs. Let me walk you through it the way I would if you were sitting across from me at the clinic.

What is actually happening in your stomach

Acute gastroenteritis just means your stomach and intestines are inflamed and irritated. The two common causes are contaminated food or water and a viral infection that spreads easily at home, in offices, and in schools. Bacteria from food that was not stored or cooked well, or a virus passed on from someone who was already unwell, upsets the normal working of the gut. Your body then does what it is built to do, which is to flush the trouble out. That is why you get vomiting and loose motions.

It feels miserable, but this clearing out is usually short lived. The real risk in most cases is not the infection itself. It is losing too much water and salt through all that vomiting and diarrhoea. That is dehydration, and preventing it is the single most useful thing you can do at home.

Staying hydrated: the part that matters most

When you lose fluid fast, plain water alone is not enough, because you are also losing salts that your body needs. This is where ORS (oral rehydration solution) helps. A standard ORS packet mixed correctly in clean water gives back both the water and the salts in the right balance.

The trick is how you drink it. If you gulp a full glass, an unsettled stomach often throws it straight back. So go slow.

• Take small, frequent sips of ORS, a spoonful or a few sips every few minutes, rather than large amounts at once.
• If you vomit, wait about ten to fifteen minutes, then start the small sips again. Do not give up on fluids.
• Use safe fluids: ORS, clean boiled or bottled water, thin dal water, rice water (kanji), coconut water, or clear soups.
• Go easy on very sugary drinks, strong coffee, and fizzy colas, as these can make loose motions worse.
• For a breastfeeding baby, keep feeding on demand. Breast milk is both food and fluid.
• A simple check: if you are passing urine a normal number of times and it is pale, you are keeping up reasonably well.

Eating during recovery

You do not need to starve yourself, and you also do not need to force a full plate. Let your appetite lead. Once the worst of the vomiting eases, start with small amounts of plain, easy food and build up as you feel able.

• Good early choices: soft rice with dal, khichdi, curd rice, banana, toast, plain biscuits, and clear vegetable soup.
• Add curd, which many people tolerate well and find settling.
• Give oily, spicy, very rich, or heavy non-vegetarian meals a few days off until your gut has calmed down.
• Some people feel worse with a lot of milk for a short while after a stomach bug, so watch how your body responds.
• Wash hands well before eating and after the bathroom, so you do not pass the infection to the rest of the family.

Do you need antibiotics

This is one of the most common questions I hear, so let me be direct. In most cases of vomiting and loose motions, antibiotics are not needed and do not help, because many of these infections are viral, and even a lot of the food related ones settle on their own with good hydration. Taking antibiotics you do not need can upset the gut further and cause other problems down the line.

Please do not self medicate with antibiotics or with medicines to forcibly stop the motions, and do not repeat a leftover strip from a previous illness. Whether any medicine is truly needed, and which one, is a decision for the treating doctor after examining you. If you are already on regular medicines for another condition, mention that when you come in.

Red flags: when to seek care without delay

Most people never reach this stage. But some do, and knowing the warning signs protects you. See a doctor promptly, or go to an emergency hospital, if you notice any of the following.

• Signs of dehydration: very little or no urine, a dry mouth, sunken eyes, extreme weakness, dizziness on standing, or in a baby, a sunken soft spot on the head and crying with few or no tears.
• You cannot keep any fluid down at all because of constant vomiting.
• Blood in the stool or in the vomit, or black tarry motions.
• A high fever that does not settle, or fever with shaking chills.
• Severe or steadily worsening stomach pain, rather than the usual cramps that ease after passing motion.
• Loose motions that drag on beyond a few days instead of improving.
• The person is a very young child, an elderly person, pregnant, or someone with diabetes, kidney, or heart problems, as they can go downhill faster and should be reviewed earlier.

For a true emergency, such as a person who is very drowsy or hard to wake, a baby who is limp and not feeding, severe unrelenting abdominal pain, or clear signs of serious dehydration, do not wait it out at home. Call 108 or go straight to the nearest emergency hospital. In infants and older adults, it is always safer to get reviewed sooner rather than later.

A quick word for Viman Nagar and around

If you are dragging yourself through an office shift in Kharadi or riding your two wheeler down New Airport Road while your stomach churns, it is easy to keep putting off a check. You do not have to. A quick outpatient consultation lets a doctor judge how dehydrated you are, decide whether you can safely manage at home with oral fluids or should be referred onward for drip fluids and closer monitoring, and rule out anything more serious hiding behind the usual symptoms. Where a problem clearly needs hospital based treatment, we assess and guide you at the clinic and arrange onward care with a partner hospital.

At Prudent International Health Clinic in Viman Nagar, our general and family medicine team, along with our other specialists under one roof, sees patients with stomach upsets every single day. I am Dr. Rajiv Kumar, a general and family physician, and we are open all 7 days from 9 AM to 9 PM with no lunch hour closure and walk-ins welcome. If your stomach is not settling, or you are simply not sure how worried to be, call or WhatsApp us on +91 70287 22200 and come in.