Other parents keep saying the flu shot i

Short answer: the "controversial" claim does not match the evidence I checked this week. Flu vaccination in children reduces flu illness, and more importantly it reduces the heavy outcomes — flu-related PICU admission and flu-related death. The reactions families actually worry about are ordinary and short; the dangerous ones are rare, and they show up in minutes, not weeks.

What the evidence says (CDC, "Benefits of Flu Vaccination", page checked 17 October 2026):
Source: cdc-clinical https://www.cdc.gov/flu-vaccines-work/benefits/index.html

• "During seasons when the influenza viruses used in flu vaccine production are similar to those that are spreading, studies show flu vaccination reduced the risk of a flu-related doctor's visit by 40-60%."
• "A 2014 study showed that flu vaccination reduced children's risk of flu-related pediatric intensive care unit (PICU) admission by 74% during flu seasons from 2010 to 2012."
• For the 2024–2025 season, CDC estimated vaccination prevented 10 million flu-related illnesses, 5 million flu-related medical visits, 180,000 flu-related hospitalisations and 12,000 flu-related deaths in the US.
• Also on that page, older adults: a systematic review found flu vaccination reduced flu-related hospitalisation among older adults by about 40% on average. That matters for the elder in your house.
• On the doubts themselves: the paediatric immunisation guidance records that studies "have found no link between vaccines and autism spectrum disorder" and "There is no proof that vaccines cause autism."

1. What you tried vs a better alternative

What you tried: skipping the flu shot based on rumours.

Better, still inside the same Saturday booking:

• Bring the rumours to the vaccinator as three written questions. Say: "We've heard (1) it doesn't work, (2) it gives you the flu, (3) it's linked to autism — what is the evidence for each?" That converts a group-chat argument into a conversation with the person who holds the needles, and it takes one minute.
• Bring the paper: your child's immunisation record, plus the egg-allergy or previous-reaction history if there is one. The card behind this is clear — an egg allergy is not a reason to refuse the influenza vaccine; no special protocol is needed beyond what any recipient gets. Tell the vaccinator anyway; that is their call, not yours.
• Book for the whole household in one sitting if you can. An unvaccinated adult or elder in the house is the person most likely to bring flu home, and the page above shows the benefit for older adults is real. Fewer trips, fewer school-week mornings lost.
• Keep the appointment even if the child has a mild cold. Mild illness is not a reason to postpone; a significant fever or a severe illness is the vaccinator's call to delay, and they make it in the room, not on a forum.

2. Constraints and avoid list

• I am not a physician and this is not a diagnosis; I do not diagnose, and I do not change or calculate anything medication-wise — no doses, no brand shopping lists, no supplements or "natural powders" anyone is selling as a substitute. The vaccine itself is the intervention; there is no kitchen version of it.
• Do not buy anything prescription-strength over the internet to "cover" the week before or after the shot.
• Do not build a month-by-month catch-up calendar at home. Which dose is due is the local programme's question, and the vaccinator's.
• Do not cancel every future visit because of one runny nose, and do not let a sore arm tomorrow put next year's booking in doubt.
• In the kitchen this week: no special "immune foods" to make the vaccine work better. Normal meals, normal fluids, normal sleep — that is the whole home-side preparation.
• Weekend logistics: decide now who brings whom, and who stays home with the elder if the child is groggy afterwards. Twenty-five minutes of planning Saturday morning is the actual work here.

3. Red flags — when to stop DIY and get help

• Lips or tongue swelling, widespread hives, wheeze, or collapse in the minutes after a shot: call your local emergency number now. Lie them flat if they are shocked and breathing, sit them up if they cannot breathe. Do not wait to see whether it settles.
• A child who will not wake, will not drink, or has a rash that does not fade when you press a glass against it, or a fit, in the days after a shot: that is not "just the vaccine". Seek care the same day, or your local emergency number if it is happening now.
• A booked vaccination where the child is clearly severely unwell today: keep the appointment, tell the vaccinator, let them decide.

Decision tree you can screenshot

1. Minor cold, no fever, child drinking and alert → go to the Saturday clinic as booked.
2. Significant fever or the child looks seriously unwell today → still go or call, but tell them; the delay decision is theirs.
3. Egg allergy or a past mild reaction → go, and say so at the desk.
4. First 30 minutes after the shot, any airway swelling / wheeze / collapse → local emergency number, now.
5. Next day: sore arm, tender thigh, low fever, cranky but drinking → comfort, fluids, watch. This is the expected row.
6. Next day: not waking, not drinking, non-blanching rash, a fit → same-day clinical review; emergency number if it is happening now.

Common side effects, plainly

• Sore or red arm/thigh, tenderness, mild fever, tiredness, a whiny child for a day or two. Expected, and they settle.
• In the vaccinated-but-still-hospitalised group, illness was less severe — less likely to need ICU or breathing support.
• Rare but serious: anaphylaxis, within minutes. That is the row above, and it is why you stay for the clinic's observation time if they ask you to.

Success in 24 hours — what it looks like

Not "nobody got sick". Rather:

• The Saturday appointment happened, or it happened with a rescheduled date in writing, and the three questions were asked out loud.
• The household knows who was vaccinated and who is not yet, including the elder.
• You have the clinic's after-hours number on the fridge and one adult assigned to Saturday logistics.
• If a sore arm shows up tomorrow, it is on the watch list rather than being read as a reason the vaccine was a mistake.

If you tell me which country or city you are in, I can point you at your local immunisation programme page for what is offered at your child's age.