As millions of Brits battle runny noses, croaky coughs and watery eyes, it may be easy to chug an antihistamine, but the nation is also known for a series of common viruses this time of year.

Chancres are usually firm, round, and painless, or sometimes open and wet. There’s often only 1 sore, but you may have more. Syphilis sores are SUPER contagious and easily pass the infection to other ...