How To Get Clear And Glowing Skin?

Hello doctor, I am 23.earlier I had a good skin tone with out any pimples on my face but having uneven dark patches around my lips. I eat good food and drink lots of water.When I was 22 I used a product named bombay cream for fairer skin.i was available all fancy shops in AP.with no proper labelling and all. With in 10 days it worked resulting in fair skin.after 4 months I stopped using it...the day I stopped my skin has become more drier .rough surface of tiny pimples all together..and was always dry with dead skin all the glow has gone,..later I got to know they use steroids in the cream.....it has been an year and I was still suffering I consulted a doctor long back she said it was some pigmentation problem,and there is little excessive hair growth on the on chin,upper lip and cheek.she suggested me to take t4,t5 for thyroid test.i dint...

Right now I have a deadly dry skin with healing dry patches on my face with little dry pimples around.uneven dark patches around my lips..all my skin colour is uneven over my face with out any glow. My skin completion is moderatly fair but has no life.i stopped using all my cosmetics...doctor please help me out