How much fluconazole should you take after CO2 medium depth laser? I am a 100 pound healthy female. 29

I received a laser treatment on Monday the 23rd. Every thing went well. I was under anesthesia so I didn't feel a thing. I was ready to go and start my home care and specific medications. But one thing seemed strange, fluconazol, the amount seemed off. What, if any, is the dose of fluconazol to prevent a fungal skin infection from the environment created by the wound and the antibiotics?