Will the LHP session I did for my client heal his erectile dysfunction? What is the best way to help him further?

This, too, is karmic in origin, and a combination of the LHP and the Deep Subconscious Channeling with Trauma Resolution work is the key here, particularly for this symptom. It is not carved in stone. It is reversible, but will take time to work through the inner blocks. If you keep going, we will support the reversal of this set of symptoms.