How can I get rid of chipmunk cheeks?

I'm not fat and I already run...in fact I weigh less than 115 and I'm 5'2 1/2

Do massagers help? like these:

link

link

I drink tons of water, white/green/oolong tea, I have a sweet tooth as opposed to craving salty foods so I rarely eat them

advice por favor?
How can I get rid of chipmunk cheeks?
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