Any safe home options for my cats ears both really bothering her.

Any safe home options for my cats ears both really bothering her. She can't relax. She is scratching and shaking her head and scurrying around, keeping her ears kinda flat. Pet smart doesn't open until tomorrow. Is there anything I can do at home overnight to give her relief in the meantime? Any recommendations would be great. I peeked inside both ears, I do not see the blackness that Google says is ear mites.

46f in Canada, its after hours so will contact vet tomorrow if necessary (since I just paid rent I don't have much money left so will take her only if persists or worsens)

I just wanting my cat not to have to deal with it all night. my cat is an indoor cat, 14yrs old, domestic long-haired tortoiseshell. She had ear issues as a kitten but they haven't occurred in over a decade.