Influenza is influenza, Acyclovir is not effective against influenza, Acyclovir can treat herpes simplex virus infections, etc. It should be used in accordance with medical advice. Acyclovir has an inhibitory effect on varicella zoster virus, herpes simplex virus, cytomegalovirus, etc. It can interfere with viral DNA polymerase. Influenza viruses are RNA viruses, so according to the mechanism of action of acyclovir, this product has no therapeutic effect on influenza. Acyclovir treats herpes zoster, herpes simplex virus infection, and chickenpox in immunodeficient people. Adverse reactions can be seen as dizziness, headache, nausea, vomiting, diarrhea, and arthralgia. It is contraindicated in people who are allergic to the product. The presence of influenza should be timely consultation, under the guidance of the doctor reasonable use of medication, not blindly use drugs to affect the condition.