Huge bump like pimple on forhead?

I have this huge bump thats like a inch wide on my forhead. It looks like I hit my head but its a ctually a pimple. Why does this occur? Its looks like I got socked on my forhead or something.|||dont pop it, itll only swell more. Its filled w/ clear puss, it wont pop like a zit, itll just ooze out through your skin and become irritated. try hot compresses and hope the swelling goes down...if not, see a dermotologist. Theyll give you some cream tom put on it.|||You probably just got something in one of your pores. Dirt, bacteria anything that doesn%26#039;t belong there will really aggervate the skin. Try putting a warm compress on it and it will help the pimple to come out. It works for pimples ingrowns anything that need to eject from the skin. It might take a few times but it will help. Also make sure once it opens you keep it clean so it doesn%26#039;t become infected and cause you more of a headache lol! Also if you don%26#039;t have a daily facial routine you should really try getting a gentle face wash with no alcohol in it!That can really dry and damage your skin. Followed by a facial moisturizer meant for the face, you don%26#039;t want to cause more clogged pores. Hope that helped|||That%26#039;s just how pimples are - weird and unpredictable.|||It could also be a sebaceous cyst..a fatty deposit. Had one on my jaw line once. Really cool when it%26#039;s lanced, just doesn%26#039;t stop ooooozing.