I have chiken skin in my leg andarm and face whats treatment?

Chicken skin: You seem quite young to have "chicken skin" which I presume you mean to be thin, wrinkly skin. This is a cosmetic treatment which can involve surgery or laser treatments usually. Contact a plastic surgeon or medical spa. Keep in mind, treating it at a young age will likely entail "re"treatment when you are older - upwards of 50-55 years of age.