The sooner you do it the easier it's gonna be. Just bite the bullet and get it done, and schedule your 6 month follow up visit before you leave. I went more than a decade and getting back to normal - multiple deep cleanings - was rough. But once you get back to normal, just take it easy on the sugary sodas, brush twice a day, and floss or water pik more often than never and those visits are quick. I go every 6 months and it's still just as uncomfortable, but they're done in a couple minutes instead of 10-15.