My dermatologist prescribed both tazorac and azelex. I'm to use Azelex twice a day. In the morning and at night. Then after applying azelex I'm to apply tazorac . For Azelex it says use once a day . My dermatologist said twice a day ? Is it safe with tazorac? Wanted a second opinion.. After reading the paper that came inside the Azelex box that read use once a day. Thank you