How Much Time It Will Take Place To Look Beautiful

how much time it will take place to look beautiful after dermaroller treatment..i had done two sittings on my face by skun specialist,after 2nd sitting i got pimples on my face so my doctor prescibed me after 4th day of treatment of derma roller he suggest me use benzel 2.5 cream to aply on my face at night for one hour and rinse off ..and morning use clear gel...but after using this two cream again sccars showing on my face..using cream like this on face immediate after treatment is good or bed...can u please suggest me