My solution for ent/respiratory infections is earth rather than herbal. We have a nebulizer that was originally used for pharmaceutical inhalants; I now use it with plain saline. You can buy it in ampules online or make it yourself. I sit and read for around 20 minutes while breathing saline mist through a mask (so I can alternate mouth/nose breathing). Within a few days of such treatment, any infection seems to go away. Mind you, I start using the saline at the first sign of a cold, so things don't progress to the bacterial stage, but it worked on the green stuff too. Amazing how inhaling water and earth can soothe membranes that interface with atmosphere. It helps with allergies, too, and with smoke from wildfires. If HMO's would just give everyone one of these machines they could avoid a lot of escalated treatment. I had decades of cold/sinus/lung infections, treated with antibiotics, before I figured this out for myself. Earth heals!