Honey has antibacterial properties and also acts as a hypertonic osmotic, which means that it draws water out of inflamed tissue. This reduces swelling and discomfort of a sore throat. When you combine honey with the juice of half a lemon and hot water it's even better as you will get high dose of a natural vitamin C, which busts your immunity and helps your body fight off the infection. You can try it yourself next time if you feel like you may be catching a cold or you need an extra bust of immunity.