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1. Its an infection with collection of the pus near the anal region - possible cause could be hair follicular infection.
2.It can be treated with a course of antibiotic if normal condition, if complicated will leak and recurrence a small incision and drainage
followed by antibiotics will help.
3.You should not touch, press, scratch the area, as it will complicate the healing process.
4.If any possible clean will antiseptic liquids that will help in heal better and quicker.
5.You can't ignore it as it will complicate, ant communicate internally with anus and internally which needs major procedure to treat. Good luck.
Hope it helps you. Wish you a good health.
Anything to ask ? do not hesitate. Thank you.