How to make big puffy gums go down?

ok so i have braces and ive had them for about 8 months and lately the orthodontist has been telling me that my gums are big. they told me that i need to floss so when i went home i tried to floss but i noticed that on my bottom teeth my gums are so puffy that i cant floss them because my braces are in the way... yes they're that big. so i need a different way besides flossing to make my gums smaller. i have a dentist appointment tomorrow so im not sure if thats going to help but i really need a different way besides flossing to get my gums smaller ppllzz!!!!!!!!! thx!!!!!!!!!