Talk to Dermatologist on Face Redness Due To Sun Exposure

I have done my treatment for acne with course of 20days azithromycin 6 months isotretinoin and Femi care face wash(salicylic acid) alhamdullah my face now clear from acne I had quit my face wash for more than one year. now my face more than previous and having dark appearance along with some redness due to Sun exposure and I don't use nowadays any face wash/soap/or any thing please suggest me some good night whitening cream along with good whitening face wash .