Could I Apply Safgel Ointment For Small Decub Area Near The Sacrum?

Question: MY MOTHER IS IN A NURSING HOME. ABOUT A MONTH AGO, SHE DEVELOPED A CLUSTER OF VESICLE LIKE ERUPTIONS IN THE ANAL AREA AND A STAGE II DECUB ULCER AT THE TOP OF THE MID BUTTOCK AREA WHICH WAS INITIALLY TREATED WITH SAFGEL OINTMENT. THE CAUSE OF THE PROBLEM ESSENTIALLY NOT CHANGING HER DIAPER IN A TIMELY MANNER, WHICH I WITNESSED MANY TIMES. WITHIN A FEW DAYS THE VESCICLE ERUPTIONS HAD DRIED UP, THERE WAS LESS REDNESS IN THE ARE AND THE SMALL DECUB AREA NEAR THE SACRUM WAS STRARTING TO HEAL. THE FACILITY CALLED IN A WOUND SPECIALIST WHO STOPPED THE SAFGEL STARTED TREATING THE AREAS WITH NYSTATIN OINTMENT AND SANTLYMURIROCIN ONINTMENT. SIX WEEKS LATER NOW THE VESICLE ERUPTIONS HAVE NOT RETURNED, BUT THE SMALL DECUB AREA STILL HAS NOT GRANULATED IN. MOTHER IS NOT A DECUB, AND IS IN A RELATIVELY GOOD PHYSICAL CONDITION. I SUGGESTED GOING BACK TO THE SAFGEL OINTMENT WHICH HAS WORKED IN THE PAST TO AID HEALING. PLEASE ADVISE

What about the santyl muprirocin ointment that is currently being applied by the facility? I didn't suspect that this was a fungal skin problem from the start. It looked like a typical diaper rash irritation from dirty diaper skin problem.

thank you for your advice, will relate to the facility.