As an individual, if would be very dicey.  Could you get receipts and claim a medical expense?  Doubtful.

As a business, you could try to deduct under entertainment -- but again receipts might be an issue.  Best bet would be if you had an established relationship with a provider who would actually let you issue a 1099 to her, and would then declare that income on her taxes.  You could  probably call it management consulting or something of the sort, but it would require considerable trust from both parties.  With this arrangment, it would probably work if the expenses weren't too great and triggered an audit.