Is it safe to use mycoster powder in conjunction with daktarin cream, to get rid of a fungal infection in the groin area. i will apply one every 12hrs?

Safe: But makes no sense. They do the same thing. Using 2 of them is not more effective than using 1 alone. "Fungal" infection might be candida {yeast}, intertrigo, or tinea cruris. Either of these therapies might be effective for any of these conditions. Best results may require a more precise diagnosis with understanding about the cause. Sometimes "fungus in groin" is actually psoriasis or seborrheic