every oil will kill mites, just a drop or two, emulsify with soap/etc, neem if you have it, dlimonene rocks, vegetable oil works too.
find the balance, where it doesnt kill your leaf, about 1-3% I find good, eye balled honestly. peppermint oil is my fav next is thyme.
the issue is the next batch of mites and their eggs are awaiting birth. you will miss these, and using the same over and over will soon be like a bath to the borg. change it up, dlimonene is nice, orange peel man, squeeze some into your sprayer.
better yet, if you have a fogger, or a new airless painter gun that works better, more coverage. separate the infected ones, treat the nons even better.
if you can....an ice water dip kills mites and eggs, plants dont mind much, if in later flower I'd cold shower them if I were you only..