Aggressive 3 year old female beagle

My 3 year old female beagle Daisy has become aggressive toward small children and other dogs. This just happened recently. She snaps and lets out the loudest most high pitched scream you could possibly imagine. It's terrifying. She has always been very sweet natured, never aggressive toward me or others for that matter.

But now it has changed, I can almost predict when she is going to snap. So I try my best to diffuse the situation before it even happens. But I can't babysit her every second there are other people around. I also don't want to have to lock her up, that isn't fair and I don't think it will be the least bit helpful in solving the issue. Chances are that segregating her from everyone will only make matters worse.

I can account the last two times my 3year old nephew has touched her that she snaps and growls at him. She doesn't see him very often so I;m sure if that is the reason or just because he is 3 and just acing like a 3 year old acts.
I don't understand why this is happening. More can I correct it before it gets worse.
I'm afraid to bring her to a family party, the pet store or even outside to go to the bathroom in fear there will be another dog or small child around.

A co-worker of mine suggested a sedative but that is the last thing I want to do. I'm worried about the liability a d god forbid she bite someone, I could loose her. I don't want that to happen.

Can anyone explain what is going?

-Daisy's worried mom

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Dec 16, 2014
Get a muzzle
by: Adam G. Katz

Here's what I advise:

1. Get a muzzle.

2. Teach the dog obedience exercises, so that she learns she must hold a sit-stay and down-stay, regardless of distractions.

3. Make her hold these commands (gradually) around more stimulating environments. If she shows aggression, correct her back into the sit-position. All while you're working with her or in public, she should be wearing the muzzle until you get her so that she's know longer showing the aggression.

4. Work boundary training exercises, which will quickly teach her what "No" means.

5 Use the "No" command if she shows any aggression.

Right now, she either doesn't understand what "No!" means; Or she doesn't trust that you'll keep her safe.

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