Why Are The Insideof Chip Bags Shinny I Got Snakebites About 6 Days Ago And Today When I Woke Up I Saw A Clear White Iny Buble In The Insideof Mylip?

I got snakebites about 6 days ago and today when i woke up i saw a clear white iny buble in the insideof mylip? - why are the insideof chip bags shinny

I do not know what anyone can help me, please!