Pics. Anyone know what these are on my horses belly?

[Silverfire]

Anyone know what these are on my horses belly? She came in with them tonight, there are three others at the moment. Hoping the pic is attached.

 

[Twinkley Lights]

Not sure but could be nasty reaction to fly / lodge bite. I would purple spray and let sir get to it and then sudocreme once it's sealing over.

 

[Silverfire]

I don't think they are fly bites. None of the other horses have any. They look like pus coming out of her skin. Have attached pic again and one taken of it this morning. They are on the bottom of her belly.

This morning

 

[ester]

Frank gets similar its like he gets a low grade localised bacterial infection when the skin is compromised (presents a little like a wet mud fever would)!so fly bite/ swear bumps etc all causes. With him sudocreme with added sulphur powder works really well and clears them up in a couple of days

 

[dieseldog]

Might be ticks, well where they have been, does it crystallise?

 

[Silverfire]

Thanks for your replies everyone. This is what they look like this morning. Not had anything put on them other than fresh air. Out during day and flies don't seem interested in them. These are the size of a one pence coin. Mare was dosed with fasinex five days before they appeared and i'm wondering if they are some reaction to that?