Any discreet ways to reduce size?

Im a 14 year old gau and my is already 6 inches long. Its really annoying when Im at school and get a hard on in the boys changeroom (I'm obv gay fyi) and rea;ly embarrasing. The guys all go like "ew" and ****. Is there any ways to stop it from getting much bigger, slow it down on reduce it? Its pissing me off!