Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Hair follicles present in the layers of skin can get infected quite often. Initially, it may be viral but if there s pus filled in it then most likely it may be bacterial. Just draining out the pus will not solve the problem because the organisms need to be eliminated. It will require topical antibiotic application post drainage of pus and better to take a course of oral antibiotics as well to avoid further complications. In rare cases, streptoccocal and staphylococcal infections tend to get complicated. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Prafulla Srinivas