Immunisation reaction?

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Hello,
my LO had his immunisations on Monday. Today his arm is very hot to touch, a slight lump from the injection site and the redness has spread. Is this a normal reaction? Don’t recall this happening previously with his vaccinations as a baby.
pics included- First picture was yesterday and the 2nd one is the redness today.
Thanks in advance!

This looks within the realms of a standard local inflammation secondary to immunisation.
How old is your LO?

Is it the 13 month ones or the 3.5 year ones?7

You could pop a cool compress on if your LO tolerates it, and apply some cooling non perfumed moisturiser.
Keep an eye on it; it'll probably start going down soon.

It's 48 hours post vaccination so quite normal at the moment, in terms of presentation and feeling hot to the touch.

Thank you for your replies. It’s the 3.5 year one.

Ah, it's possibly the Tetanus component; it's very common to develop ever more local reactions to it, the more you have.

In the 80s, they used to routinely booster every 5 years throughout adulthood; then they reduced that to every 10 years...then ( assuming you'd had your primary course of 5, at 8 weeks, 12 weeks, 16 weeks, 13 months and the 3.5 ( ' preschool booster'), only if you had had a dirty/penetrative injury or animal bite, or for travel.
This was because of incidences of ever more harsh local reactions involving tissue.

I'm a nurse practitioner and have given literally thousands of vaccinations.

Keep an eye on it and, of course, seek a GP opinion if you are worried, but my guess is that it will peak over the next 48 hours and then start going down.

No reason not to give a dose if Calpol if LO seems distressed or complaining of a sore arm.

All the best.