weeping sore on head in hair

[kissingfrogs]

My dd has suddenly developed a red sore patch (size of a 5p) on top of her head. It's raised up, a bit crusty and is a weeping a bit. It's obviously itchy too. It's not from a bash or bite, it looks more like excema (sp?).
Is this a type of psoriosis (sp again, tired tonight)? What may have caused it?

impetigo? google it and see if it fits

Could it be ringworm?

Do you have cats?

yes we have a cat and dog and horses. What could she have caught of a cat? Allergy to cat flea bite?
No, not ringworm - I know what that looks like, seen it on people and horses.
Good news is that the patch seems to be drying up - think sudocrem helped. If it gets worse or there are more patches I'll see GP.
Will google impetigo (scary!)

Ringworm can be transmitted carried by animals, especially cats and horses!