How much would it cost me to see a Dermatologist with Tri Care?

I am under Tri Care and NOT the standard, I want to see a Dermatologist for ingrown hairs, obviously pimples on my face and sadly the buttocks and ingrown hairs on the back of my thighs, also i get horrible dry skin on my arms that cause acne (its weird) but based on those factors would it cost me to see a derm through the military health insurance and how much would it cost if it does?How much would it cost me to see a Dermatologist with Tri Care?
AN ARM N A LEG