Get it made into a compound phebee - soooooo much easier.

There aren't too many pharmacies that compound, but I know the pharmacy at St John of God Hospital in Subi does it. There is also a pharmacy on Guildford Road in Maylands that compounds (its where I get my DD's compounds done). If that location suits you let me know and I'll dig out their contact details for you because you need to call ahead and give them notice.