Hi Shadow, sorry to hear about this unsettling experience. I’ve never personally dealt with stringhalt, but if I were you, I’d have your vet check your boy and see if he can’t come up with a definitive diagnosis (abscess, stringhalt, or something else). It’s always easier to work confidently and more accurately when you’re working off facts, not shooting in the dark.
I did find some additional reading that might be helpful when you’re getting ready to talk to your vet about your horse:
About Stringhalt in Horses: http://bit.ly/16dgIQO
Ask the Vet: Stringhalt: http://bit.ly/1aHxcQQ
Another forum thread discussing Stringhalt: http://bit.ly/1aHxirH
I hope something in there is helpful! Please keep us posted on how your boy is doing.
Rider, Runner, Stuff-Riders-Say-er, SmartPaker