The Last Week....

So here in the last week I have been dealing with the stupid pain of an infected Wisdom tooth....What the heck is with that...?? I mean seriously why the heck do we get wisdom teeth? You have to get them out anyways so why do they even form in your mouth? I'm so lost haha They are just painful suckers :) I guess i'm kinda bitter considering mine hurts. I've been to the dentist 3 time in a week, I'm on an antibiotic that at first(before i took it) was told that I could be allergic to it...I'm not talking like a rash, I'm talking HIVES, ANAFALACTIC SHOCK!!! Scary! So I guess here is the ultimate question, why do we get them and what are they good for? Especally for people like me that barely have enough room in their mouth as it is......