Scarlet Fever Symptoms on NewsFeed – Scarlet Fever has stricken Hong Kong with more cases so far this year than in any other year. No, Scarlet fever has nothing to do with Scarlett Johansson or the Scarlet letter its an infection that you need to look out for. The most common symptoms are a rash on your chest, armpits and behind the ears, a sore throat, fever and a bright red tongue. So if it looks like you got sunburnt in places that don’t see the sun and your tongue looks like a strawberry, you might want to see a doctor…but don’t worry, Scarlet Fever is easily treated with antibiotics. Now as for your crush on Scarlet Johansson…you can cure that by just listening to her album.