Hi. Over the last 3-4 years, I have noticed that almost everytime when (or just before) I fall ill, I have a red mark on my forehead (between the two eyes) which is more like a broad straight line. The mark then vanishes after 4-5 days automatically. It is completely painless and happens mostly when I have fever or headache. This has happened so many times by now (given that I do fall ill frequently) that I am quite sure of the correlation between the two. I checked with few general physicians during the illness on what that mark was and they all ignored saying its nothing. But I wonder if I am making a mistake ignoring something like this. Happy to drop an email with a snap of that mark if someone wants to have a look at it. Thanks