Benzaclin and retin-a ?

i use benza clin in the morning, and retin a at night. i wash my face every morning and night with the dove beauty bar. i use neutrogena oil free moisturizer for sensitive skin, i started using all this about a week ago and yesterday my face burnt REALLY bad after putting on aveeno moisturizer with spf . i switched moisturizers, but my face is realllly dry and flakey all over my chin, upper lip and the tops of my cheeks. i also have dry skin right under my eye brows and in the outer corner or my eye? i don't put any acne medications anywhere near my eyes. i read the directions that came with the benza clin and retin a and it says it will dry out my face real bad for the first 2-4 weeks, its clearing my acne but is my face going to be this dry and flakey the whole time i use it?