Penile hypersensitivity

Hey - I have had problems with intercourse I am a male and I am 25 years old, i suffer with my penis being uncomfortable touching the penis head i get discomfort, normally it’s pleasure but for me it’s not. I had been to the doctor and they gave me numb cream to numb the nerves I think, what’s my diagnosis, is there more treatment to this?

Male 25 years old smoker