Originally Posted by Cotton
I live in Florida and I see this every year . It is an allergy to "noseeums" . They are a little biting insect that almost looks like a tiny flea and they are bad in the summer time.
Ditto! I was just going to post, before I read the post above, if you had tried fly spray on her belly. My gelding gets a milder version of this in the summer from the bugs and if I apply fly spray on his belly every 2-3 days it heals up.
Cheap fix too!