Recovery from a blood bacterial infection in a few days cannot be determined; it can take as little as a few days, and in severe cases, it can take months or even longer. A blood bacterial infection is bacteremia, which is a condition in which outside bacteria enter the blood system through an entry point on the body surface or an infected entry point, proliferate within the body’s bloodstream and spread throughout the body with the bloodstream. Patients presenting with bacteremia often develop acute multiorgan metastatic infections and present with a variety of acute infectious symptoms. Bacteremia is mainly treated with medication and surgery. 1. Comparatively mild bacteremia without concomitant multiple infections in the body can be standardized with the application of antibiotics, and may be cured in 10 to 14 days in general. Drugs include levofloxacin, cefepime and so on. 2. The emergence of drug-resistant bacteria, the treatment cycle will be further extended, may reach several months. Drugs include linezolid, tigecycline, polymyxin, etc. 3. The strength of personal immunity is also an important factor affecting the treatment time of bacterial infections. For some people with relatively low immunity, the treatment time will be significantly prolonged after the occurrence of bacterial infections. Bacteremia patients can be life-threatening in serious cases, it is recommended to consult a doctor in time and follow the doctor’s instructions for treatment. If you are not feeling well, please go to a regular hospital for treatment, according to the individual situation of scientific treatment.