My Husband Had A Culture Done In His Ear, Last

my husband had a culture done in his ear, last week, and they put him on ciprodex otic suspension ear drop. We got the results of the culture today and it shows moderate staphylococcus aureus and light klebsiella oxytoca.
Should taking the ear drops twice daily, 4 drops in his ear, is that sufficient to heal the condition? We may go back to have the doctor check his eye because it has been red and swollen also could that be the same condition as the ear?