I am 15 year old boy. I've been having pimple and acne problems from last 2 years. It sometimes decreases and sometimes increases. I don't know why is this happening even after taking proper care of my skin and diet, including sleep. I am also having pimples on my back and some on my chest. I have taken a lot of care of my problems and earlier I have also consulted a skin care doctor near me but even after that there was no difference. I also get temporary rashes on my upper body sometimes when I go out in sun which also causes itching. I wish if you can help me.