How Long Does A Sinus Infection Last? A sinus infection can last anywhere from 10 days to several weeks. The length of a sinus infection usually depends on whether the cause is viral (i.e. a cold or flu) or bacterial (i.e. Streptococcus pneumonia - “strep throat” or Haemophilus influenzae).
Can you get rid of sinusitis in 24 hours? The short answer is: No. Getting rid of a sinus infection in 24 hours is probably impossible. But finding relief from the sinus pain and headaches isn't! Sinusitis symptoms are notoriously unbearable and treating a sinus infection can be a frustrating endeavor. However, there are several treatment options available, such as a nasal nebulizer, that can help eliminate mucus build-up and get you breathing better and feeling better in no time.