after getting my second set of 12s in my earlobes, one of them developed a scar. i know very little about scarring related to piercings except that there are hypertrophic and keloids. hypertrophic can be treated with home remedies like tea tree oil and keloids usually require surgical removal. does that sound correct? how do i know which one this is? note, its size has remained constant since the piercing about 9-10 months ago.