How Can I Get Rid of Botox Side Effects?

There is nothing that will really reverse or expedite the metabolism of Botox once it is injected.
Sorry to say, you will have to wait it out. Doing anything else could make it worse.

Wendean -
Sorry to hear about your bad Botox outcome. Typically, Botox will not correct jowls. Botox works by temporarily paralyzing the muscles it is injected into. If Botox was injected into the muscles that coordinate your smile and speech then it will paralyze those muscles.
The good news is Botox is temporary and has likely worn off by the time you've read this message.
In our San Francisco area practice only board certified plastic surgeons perform injections of Botox or facial fillers. Be sure you're careful about who performs your injections in the future. Always seek a board certified plastic surgeon or dermatologist.
I hope this helps.