Will medical insurance pay for Tazorac? Especially for a women over 35?

I used Tretinoin for 4 months, maxing out at .1% but I have pimples that need to be "dried out." My Dermatologist gave me Tazorac samples, he said the insurance companies will not pay for it; its a very costly gel, also, he doesn't know how people can afford this product...but people are using it. Walmart's price is $325 for 0.05% . Are there any rebates, coupons, or programs that will make Tazorac affordable? Thanks! Tazorac, medical insurance, coupons, rebates, promotional programs