Lymphocytes may be elevated during the fever recovery phase. Inflammation is still present in the body during the fever recovery phase, and pathogens have not been completely eliminated from the body. Therefore, the body’s immune defense system is still functioning and lymphocytes may be elevated. Therefore medications against pathogens need to be taken for an adequate course of treatment, such as antibacterial or antiviral medications such as amoxicillin or acyclovir. The use of the above drugs needs to be under the guidance of a medical professional, and should not be used blindly by oneself to avoid adverse consequences. Lymphocytes are still high during the recovery phase of fever, which belongs to the natural course of the disease and its recovery needs a process. You should consult a doctor in time for follow-up, and carry out reasonable and standardized diagnosis and treatment under the guidance of a professional doctor.