A 2020 study at Oxford University, UK, found that compared to antibiotics and cough medicine, raw organic honey reduced cough intensity and frequency. Raw organic honey contains glucose oxidase enzymes which convert the glucose in honey into gluconic acid, hydrogen peroxide, and free radicals that destroy bacteria. Bacteria cannot survive in hydrogen peroxide. That is where the antibacterial power of raw organic honey comes from.
In 2009, the Commission on Human Medicines (UK) advised that there is evidence that over the counter cough medicines cause more harm than benefit... In August 2018, Public Health England issued guidelines to GPs that patients should treat acute coughs with honey instead of being prescribed antibiotics.
Research suggests that raw organic honey is an effective treatment for tonsillitis. In fact, several studies have shown that hydrogen peroxide—a by-product of the fermentation process in raw organic honey—can help fight infections and viruses.
Researchers found that those who took raw organic honey experienced relief from pneumonia symptoms more quickly than those who were given conventional medical treatment. The average time it took to recover was 8 days among those taking raw organic honey vs. 14 days among those receiving conventional medicine alone.
A 2019 multinational study published in the Frontiers of Microbiology journal reported positive effects of curcumin on viral pneumonia. Viral pneumonia is currently widespread as a complication of coronavirus. Golden honey milk is an old Ayurvedic recipe to relieve dry cough.