My best friend uses Litchi just to drive me nuts. He could be on the north pole, i could be on the south pole and his reach would still get me.
From personal accounts, when she gets you trapped in a corner, I would wait for an opening underneath her and 236B or C out of there ASAP. If she staggers, I'd then use a 22A to put a little distance between us.
And here's a dangerous trap Litchi pulls on my quite frequently: Sometimes when she uses 13 Orphans, she'll chase after it and go after you. Backdash as fast as you can and slap Litchi with a 5B so you don't get caught by 13 Orphans, or if Litchi comes in and tries to grab you. Don't fall for the crap I fall for and only keep an eye on the pole, they're both just as dangerous.
That's all I got for now. If I learn anything else I'll be sure to post it. Litchi makes me rage like 12 Fists of the North Star.