Issues with his erection are almost always a side effect of a greater problem. The number one thing that has an impact on the health of a man's erection is stress and fatigue. The second thing that affects his erection is health and well-being.
There are a few things you can do. You can be patient. You can be kind. You can be accepting and have honest conversations with him about it. You can let your partner know this is a common problem that is often temporary and reversible. You can encourage him to be proactive. You can find ways to have affection and play that don’t require an erection. You can have a healthy sex life with yourself.
Beyond that, it really is his issue to tackle. He has to have the desire to want to change his relationship with his body and he has to do the work. Here are some steps guys can take to build strength and stamina in their erections: