somthing on my penis help me!!!!!!!!!!!!!!!!!!!!!!!!plz

I have something on my penis it's red and when is sweasy it some gray stuff comes out when I did that the red spot got small so is it a std or what I dont want to let my parents or my doctor. If it help I got ride of it but I dont know what is it plz help me.

You should see a doctor immediately.Sexual problems are embarrasing but there are a number of STDs that can cause long term damage to the penis and give you more sexual problems in later life.So see a doctor straight away.