A closer look

Stop bullying your doctor for amoxicillin every time your nose runs green. The color of your snot doesn't indicate a bacterial infection. The green hue actually comes from myeloperoxidase, an iron-rich enzyme produced by your own white blood cells. It literally just means your immune system is doing its job, whether fighting a virus or bacteria. Antibiotics won't do anything for a virus except make your gut bacteria hate you.