My DD has a couple of these red, raised bumps on her body. They're not bothering her, she's got not fever, has acted like a total asshole all day but otherwise fine - she's nearly 3 so tantrums are the norm.
She goes to a childminders 4 days a week so socialises with other children, possible exposure there.
Not looking for medical advice but rather experience - does this look like the start of CP? She's got one on her arm, back, couple on her face, couple on her bum/thigh but no more that I can see.