Undecided Question

My pimple finally disappered but ….:(?

I'm not a person who gets pimples occasionally but last week i suddenly got one right on my nose :( and after all those skin care products i used the pimple finally went away. But then i noticed there was a reddish spot on my nose where the pimple had been but the pimple was completely gone so there was only the spot (it was flat) its been nearly a week and the spot hasn't dissapered i don't know why when the pimple was there i didn't pop or squeeze or pinch it i just naturally waited till it dissapered thats why it took a week. Can people give me some advice on how to make it disapper and what it is thankyou best answer will be chosen :)