Has anyone experienced this?

Hello, worried mum here….

I noticed this all over my 5 year old child’s back, neck, stomach and thighs and I have no idea what it is or what’s going on… she complains that these parts of her body itches a lot. I have contacted our GP but unfortunately we have an unhelpful gp… instead of giving us an appointment to see the child, they advised the receptionist to call me to say it’s “viral infection”. Viral infection how?! Please does anyone know what this could be or what I can apply on her body? Please help.