It's been about a week. There's a bag on the back of the head. It's soft. It hurts to press the stomach. It's a little like a sore. It disappears a little a week. Occasionally it hurts. I don't know what the problem is. Is it folliculitis or what? What ointment can be applied for treatment?
This is a common bacterial infection of the scalp, which may be caused by inflammation of the scalp. It can be treated with anti-inflammatory drugs, such as fuxidi acid cream. Keep parts clean, avoid scratching and disinfect frequently.
This situation in the back of the head is still caused by local hair follicle inflammation. You should still pay attention to some wet urine. Combined with some local ointment application, it can be used for local application of desnide cream to control the symptoms of the disease, but you must pay attention to keep the local skin clean and hygienic and wash it regularly.
You have a bag on the back of your head, which is soft and painful to press. From the picture, it is red and swollen. The main consideration is folliculitis, so you need to pay attention to disinfection, and then apply mupirocin cream with anti-inflammatory drugs. Pay attention to local hygiene at ordinary times.