Just had cryotherapy and am not supposed to use tampons - can I use a yeast infection treatment w/ insertion?

I was wondering, I just had cryotherapy 5 days ago and I'm not supposed to use tampons or have intercourse, but I think i'm developing a yeast infection. Can I use a treatment for yeast infections that require insertion of a "syringe" type thing that inserts the yeast infection cream into the vagina? Or should I get something else?

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