At this point, without being able to see this (which does put me at a disadvantage) it may be the start of an infected follicle. I would apply a warm compress to the area several times a day, which will promote the infection to surface. Don't squeeze it or anything, as it can cause further complications. If this is an infected follicle, then a couple of days of the compress should help. I would also for pain have him take ibuprofen. If there is no change in a couple of days, or the area changes, causes any burning or anything else, I would have him see his doctor. Other wise do the above, keep the area clean with antibacterial soap as well.
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