wrong, sinus infections are secondary infections and you need the big bug killers or you can have abscesses, brain damage, bronchitis, pneumonia, yeah, sinus infections are nothing to play with dude
big study in 2012...if it’s viral, and 90% of sinus infections are viral, antibiotics are useless. And for most baterial sinus infections, antibiotics arn’t needed.
http://www.entnet.org/HealthInformation/antibiotics.cfm
http://www.cnn.com/2012/02/14/health/antibiotics-not-helpful-sinus-infections/
http://www.cdc.gov/getsmart/antibiotic-use/uri/sinus-infection.html