A pimple on the back of the head can be a folliculitis or a boil on the back of the head. This is usually a hair follicle infection or a local skin infection. So this is usually treated with antibiotics, usually oral roxithromycin, doxycycline can be taken. The topical medication can be mupirocin cream or compound neomycin cream. This kind of acne with certain purulent changes, then you can use the topical application of Longzhu ointment, because Longzhu ointment has a certain pus draining effect. The actual fact is that you can find a lot of people who are not able to get a good deal on these kinds of things.