Spot under my crown

This might be pearly penile papules (PPP, medically known as hirsuties coronae glandis).  If that’s the case, there’s no need to worry – they are harmless and are present in about a quarter of men (slightly more common in intact men).  It could also be thrush, a yeast infection that occurs in penises.  Check with your doctor to verify if either of these are the cause.  It’s great that you are keeping an eye on your penis health, which too many men neglect.  Add to your health regimen a daily application of a top drawer  penis nutrient cream (health professionals recommend Man1 Man Oil).  Look for one with powerful combinations like alpha lipoic acid and acetyl L carnitine.