Can you tell me how could i get rid of acne in less than three days(if possible)?

Forgive my frankness: Acne is a chronic disease and you need to be proactive and manage it. If the prom is coming up, get right with your physician, and perhaps a combination of topical benzoyl peroxide or a retinoic acid derivative or both plus systemic tetracycline will give you some relief, but it won't clear you. There's no magic, kelso, just hard work ahead of you partnered with your physician. Be brave, good luck.