I would stop the BP while on accutane or anything with active ingredients (i.e. retinoids, BP, or Salycilic Acid). Your skin will become very sensitive, and BP will increase your risk of skin side effects like peeling, redness, etc. Make sure your daytime moisturizer has SPF or use a sunscreen in addition to the moisturizer. Cetaphil is very good for sensitive skin, alot of people use it as a cleanser while on accutane. Make sure you invest in chapstick (you will use more chapstick than you have ever used in your life). Also, you may want to upgrade your moisturizer to something meant for dry, sensitive skin. I don't know if Australia has Cerave, but alot of dermatologist in America recommend it. Cetaphil has an equivalent moisturizer as well that I hear is very good.