I Have Had A Cataract Op About 3-4 Weeks Ago

I have had a cataract op about 3-4 weeks ago and I have been prescribed prednisolone sodium phosphate eye drop solutions. I have been on drops now for 9 days and have started getting a rash in my pubic area and my face and I have had to ran to to the toilet and haven't made it there on time (runs)
Before being on these I was on prednisolone drops which weren't preservative free and the same happened but not the rash. Should I stop the drops but not immediately weaning myself off?