The red swollen bag on the head is considered to be caused by bacterial infection, trauma and other reasons, and there is no quick way to reduce the swelling, which can be treated by general treatment, medication, surgery and other methods, which need to be dealt with according to the cause of the disease. 1. Bacterial infection: for example, folliculitis, boils and other infectious diseases can cause red swollen bumps on the head. General treatment: keep the skin clean and hygienic, avoid squeezing, and eat a light diet. Medication: topical antibiotic ointment such as erythromycin ointment and mupirocin ointment; oral antibiotics such as amoxicillin and cefuroxime. Surgery: If abscess is formed and there is more pus, it can be incised and drained to discharge the pus; if the nodule still persists after the inflammation subsides, it can be directly excised if necessary. 2. Trauma: Congestion and swelling of the soft tissues of the skin caused by external stimulation can also lead to red and swollen bumps on the head. General treatment: within 24 hours it is recommended to apply cold compresses as soon as possible, which can constrict blood vessels and reduce edema; hot compresses can be applied for more than 24 hours. Medication: severe pain can be combined with the use of ibuprofen, aspirin and other anti-inflammatory analgesic drugs. Red swollen bag on the head, you should go to the regular hospital in time to check, follow the doctor’s instructions on the cause of the treatment, do not self-medication.