The international license is a translation of the license into many languages. Can you perhaps get this at the local analogue of a AAA office or must it be issued in your home country, where the actual driver's license is? I'm almost surprised that you've been traveling and driving without the international license as it can avoid hassles even if it's not required. IIRC it's $10 plus a passport photo at my local AAA office, done almost instantly, and good (only) a year.