Yeah, it's illegal... If you give it up to a wild-life rehabber, they already have the supplies to treat wounds like these and then be able to nurse it back to health properly for a good release... You could probably do so yourself, but if you're not licensed, it's just not a good idea to keep it for the time being (or for a long time- that'd be worse), I guess there isn't too much reason why, except for the fact that it's illegal, and you are probably missing supplies already needed.
For good, quick help, you can post on the "Emergency help [needed]" section of the squirrel board :
www.thesquirrelboard.com (
http://thesquirrelboard.com/forums/index.php)
Also, there are many Florida rehabber-licensed people there that will be able to take, rehab, and release on there, and will be able to help you in the process.
I know it's tough giving up a baby squirrel, especially when you're sure you can help it, but it's the best thing to do for the little guy...
In the mean time, if you still have him/her, just be sure to keep him warm, and perhaps try to give him some fluids. If you happen to have some Pedialyte and a dropper, try just dripping a few drops into his mouth (if he won't latch on himself, hopefully he'll lick a little bit up). ...If you're keeping him for longer than a couple days, you should try to find some real formula: Zoologic 33/40 formula are Zoologic 30/55 formula are good ones for squirrels... There's a specific sites that sells them, but I can't find it right now.
...This stuff is just assuming that you don't really know what you're doing, and I realize that you probably actually do, because you only asked a specific question.
Well, I don't know if you need antibiotics, or I don't know what specifically you'd need to get, but I don't think it really kills them all within 24 hours - I can see it happening, but I do Not think it's an every case thing. ...Well, I guess it's already been 24 hours so we'd know by now.
Anyways, if you can't get onto the squirrel board in time (I don't remember if it requires the admin to accept you or not...), you can just ask me, and I can try to help (I'm licensed under other people to rehab baby squirrels, but the squirrels go through the center I volunteer at, so I don't deal with any ones where they're currently wounded or sick..), and I'll pass it on to them if needed and get it back to you as soon as possible.
I hope this little guy survives. <3 Thank you for trying to help and save it.
And ahhrg, I just read the end of your message. Haha. Please ignore my center part then. Sorry about that.