What should I do if the old man can't get an injection in the community when he leaves the hospital?

What you want to ask is what if the elderly can't go to the community for injections after discharge? This situation can be considered from the following aspects:

1. Invite doctors for home service: You can contact the local hospital or clinic and ask if there is a doctor who can give injections to the elderly at home, which can prevent the elderly from going out and reduce the risk of infection.

2. Seek nurses or family medical services: You can contact nurses or family medical services, invite nurses or doctors to give injections to the elderly, and provide professional medical services.

3. Home care: If the family conditions of the elderly allow, family members can learn how to inject themselves, or ask doctors or nurses to guide them at home to ensure the safety and medical effect of the elderly.