I would bathe her with a soothing non-irritating soap for starters. She may have contacted plants that are causing the itching and washing may help. HOpefully you can get some benadryl in the morning if she is still itching. When any of ours get a flea, they act like that so if you have a flea comb, I would try that as well.
Good luck!
yes flea combs do help with the itching. I have found the ones from JW to be pretty good