More details needed....
But in short you should be able to do a transfer using your Swift code from your US bank and all of yor account and bank details from the US account, take it to the bank and have someone there process your transfer.
If you don't have a bank account you could have a trustworthy friend do it for you, but I rexommend against that.
You also have options like Western. Union if you have aomeone in the US who could receice tue money or even probably paypal. I've only sent money TO Chile so someone else could probably fill you in better