Could goat milk mixed with face wash be a good remedy for acne?

Of course not: Please forgive my frankness. Somebody made this up as a cruel prank. If your acne hasn't responded to topical benzoyl peroxide as tolerated after two weeks, get with your personal physician who can add something that will clear you. I'm really sorry that you had to ask -- acne is a grave personal and professional liability that you need to manage until it remits on your own.