UPDATE: Week 3 and the frenulum looks great, much thicker and stronger. It's not entirely healed yet but I'm really happy with the progress.
There was, however, another problem. As I've said before, I wanted to speed the healing process but I didn't have neosporin so I tried a similar antibiotic cream. The result was not good, it irritated my penis and caused an infection called balanitis.
There were small lesions everywhere (glans and prepuce) and the burning sensation was unbearable. I was afraid to apply anything else, so I just kept the area clean and dry but the infection persisted for an entire day.
I did some research and balanitis seems to be a fungal infection that may be caused by antibiotics. This makes no sense to me, how can antibiotics cause a fungal infection but that's what happened: the infection appeared immediately after I applied that dreadful antibiotic cream. This kind of reaction had never happened to me.
After an entire day of pain, I applied some Bag Balm, a powerful antifungal ointment, to the lesions and the infection subsided almost as quickly as they appeared. Everything is fine now, there are no more lesions, no pain, no discomfort and the frenulum is healing really well.
Age 40. Psychogenic ED for over 20 years. Current regimen: Udenafil 200 mg, oral phentolamine mesylate 40 mg, Seredyn.