Cold sores are extremely common and are easily spread by direct contact with an infected person. A cold sore is caused by a virus, Herpes Simplex. It occurs on the lips sometimes without warning or ...

When bees combine sap from trees with their own discharges and beeswax, they create a sticky, greenish-brown product used as a coating to build their hives. This is propolis, or “bee glue.” Did you ...