How to get rid of phlegm?

If you have a sinus infection and bronchitis that has not gone away with antibiotics, you can see an ENT Specialist for an assessment and likely a nasoendoscopy (scope through the nose done in the clinic under local anaesthesia). If there is still infected mucous (mucopus) seen in your nose, a sample of the mucopus has to be taken and sent to the lab for analysis (bacterial culture). This is to determine the type of bacteria responsible for your sinus infection and the antibiotics that will be effective against that bacteria.

If you have been diagnosed with acute sinusitis (bacterial infection of the sinuses) and bronchitis (inflammation of the lungs), you will need to be treated with a course of oral antibiotics, nasal wash with salt solutions and nasal steroid sprays. It may take up to 2-3 weeks for an acute sinusitis to resolve completely. I would suggest visiting an ENT Specialist for an assessment. It is quite likely that a nasoendoscopy will be required. This involves passing a small scope through the nose under local anaesthesia to look for signs of sinusitis.