What Causes Infection After Shaving Legs?
It appears to be folliculitis
Detailed Answer:
Hello
Thanks for the query
I have gone through all the images and it appears to be follicultis (infection of hair follicle) not spider bite or other form of irritant dermatitis.
In spider bite usually the superficial skin layer remains intact and lesion is larger.Also the surrounding redness a sign of inflammation is more in spider bite which is not in your case.
I would suggest you to do regular dressing by cleaning with fresh water and apply some antibiotic ointment like mupirocin which has a good coverage for staphylococcus the most common organism causing follicultis.
With these measure the lesion should heal within one week.Avoid using hydrogen peroxide as too much use may lead to skin damage.
I shall be glad to answer if you have any more query
Regards