What should I do about this sudden breakout? Is there a best way to get rid of it quickly?

It was perfectly fine just yesterday!! But when I looked in the mirror this morning, there was a red bump sticking out... Ugh. I know that if I panic and forcefully squeeze or touch it with my hands at times like this, it will leave a scar or spread even more, but I just can't stand it; I can't stand it. When I search online, there are so many methods like putting on a patch or applying a generous amount of soothing ampoule, but I'm even more frustrated because I don't really know what quick fix is ​​right for my skin. Some people say that cooling down the heat with an ice pack is the most effective, while others say applying a thick layer of tea tree oil or cica cream is the best, but it seems the effects vary from person to person, probably because everyone has different skin types. What on earth should I do about inflammatory breakouts that aren't just small bumps but are big and hard like mine right now? It's really stressing me out.