How long does it take for an intracranial infection to get better is somewhat related to the pathogen that causes the intracranial infection. Intracranial infections can have viral infections, bacterial infections, and fungal infections, etc. The treatment time is not the same, and the time for the infection to recover will also vary.1. Viral infections: usually, for viral infections, the course of treatment is relatively short, and the treatment usually lasts about 21 days. For example, in the case of herpes simplex virus infection, it can be treated with acyclovir-type antiviral drugs, and can be reviewed by intracranial puncture, according to the number of white blood cells, as well as the patient’s clinical performance to see the improvement of the situation. However, if it is viral encephalitis, such as herpes simplex encephalitis, it may also be accompanied by more serious mental symptoms, such as epilepsy, so after the infection improves, these concomitant clinical symptoms will take a longer time to cure; 2. Bacterial infections: the general bacterial treatment time and course of treatment will be a bit longer, it may be as long as 1-2 months or even a few months, such as patients with brain abscess, you need to choose sensitive antibiotic treatment for the disease-causing bacteria. Antibiotic treatment, after the treatment can be repeated lumbar puncture to see the white blood cells, through the imaging examination to observe the lesions in the brain. If it is a special type of bacterial infection such as Mycobacterium tuberculosis, the treatment time is even longer, usually need half a year or even longer for anti-TB treatment, at this time, need to combine a variety of drugs for anti-tuberculosis treatment; 3. Fungal infections: part of the patients can be cured after half a year or even one year, but some patients are difficult to cure, which can lead to death. Fungal infection is usually caused when the resistance of people is very low, and antifungal treatment should be carried out in time after discovery. Therefore, the length of the treatment cycle for intracranial infections has a lot to do with the causative pathogen. It is also judged by the individual’s physical condition; if they are young and in good health, they will tolerate the disease better. Whether the intracranial infections are caused by viral infections, bacterial infections or fungal infections, the mortality rate is relatively high, so we must pay attention to it and carry out a full course of treatment. Early detection, early diagnosis and early treatment can reduce the mortality rate and improve the prognosis of the disease.