How long should one abstain from alcohol when planning to have children?

Patient's question:

Doctor, hello
My wife and I want to have a child now. I love drinking alcohol. How long do I need to abstain from alcohol? Additionally, 10 days ago, my wife took metronidazole for gingivitis. When is the best time for us to have a child? Thank you, doctor

Doctor's answer:

To have a healthy child (including growing up without alcoholism):
Generally, abstaining from alcohol refers to avoiding hard liquor, and it's recommended to stick to this for at least 2-3 months (as sperm takes 2-3 months to renew). During this time, your partner can fully treat their periodontitis.
I think you should discuss this with your partner. When your mental, physical, financial, and environmental preparations are all in place, the spring season next year would be ideal.
Note: 1. Don’t overindulge during the Spring Festival; 2. Get a fertility check-up and evaluation at a formal specialized hospital.