A human has 4 paranasal sinuses, these are cavities filled out with air. As a result of the inflammatory processes in the sinuses, purulence appears, a human feels sick, fatigue, and difficult breathing. In absolute majority of cases, sinusitis appears as a result of the bacterial, viral, or fungal infection. amoximed.com/amoxil-amoxicillin-for-sinus-infection.html.
This is fun…
Character Animator and Illustrator. 
Me alegro que te cundiera el domingo, está quedando genial!!
Muy bueno my friend, estoy deseando verlo terminado! 😀