As you might be in a position to imagine, there has been far-reaching study on this subject. Some of the investigation studies recommend that we function out within the mid-afternoon for the most helpful final results. There are actually loads of causes for this, but one is the fact that this time of day falls below the correct time according to our innate biorhythms.
Just when your armpit starts to itch a few weeks ago and until now you still have it, but it gets even more itchy and more persistent than before and starts to have redness, then it may be high time for you to stop ignoring it and think its just an ordinary itch. Because you might have a fungal / yeast infection thriving there. You might be having a yeast infection called intertrigo.