It really is better to go to the doctor, if the papules bother you that much, and ask for a referral to a dermatologist who can do fractional CO2 laser treatment.
Pearly penile papules (white spots on the penis): Treatments and more
Pearly penile papules are NOT caused by lichen nitidus And you should never try lichen nitidus treatments for your papules Lichen nitidus is an inflammatory disease that also results in papules.