Big Buccal Cheeks After Ultherapy?

Most likely this is merely post procedural swelling which should improve within a few days. Head of bed elevation, cool (not ice directly on the skin) compresses can help. If you are still concerned, you should contact the office where it was performed. Good luck.

The timing of the swelling suggests procedure related soft tissue swelling and can be reduced with all of the suggested treatments and the use of bioflavonoids and anti inflammatory agents like ibuprofen and bioflvonoids. 

You are experiencing normal post-procedural swelling. Most people do not become as swollen as you are describing, but everyone is different. Sleep at a 45 degree angle, gently massage your face to promote lymphatic and venous drainage, ice your facial skin for 5-10 minutes a few times an hour and soon your swelling will subside.