what is my spot?

I'm a 21 year old male. To be honest, I've had multiple partners with which I've had unprotected sex, but recently (past 2 years) only with the same 2 girls. Roughly 6-7 weeks ago, I noticed a small white/skin colored bump on the shaft of my penis. Looks like a hair follicle, but I don't think that's what it is. It is only SLIGHTLY raised, is completely painless, and has no fluid in it. It doesn't have the "stalk" or cauliflower like appearance that is generally associated with Genital Warts. The bump has remained the same since I noticed it the first time. I also have a few other very small bumps in other locations on the shaft. they are also painless and skin colored though some are slightly red. I recently saw a Urologist who said they did not look like warts nor did they look herpetic, or like syphilis. He said that if anything STD related, it was Molluscum, but the bumps are only barely raised and cannot be popped. He also said that it was most likely Psoriasis, but the spot is not red nor itchy, nor does it look anything like the penile psoriasis pictures I've seen online. It seems to be responding to hydrocortisone cream (1%) but is not totally disappeared after 2 daily applications for the last 2 days. Also, since seeing the doc I've also noted 3 more small pink bumps that are a little more raised. two on my lower abdomen, wear my waist band is, and one on my inner thigh. Could this be Psoriasis even though it doesn't look anything like those picture? Is it possible the Urologist overlooked the possibility of herpes or GW? Is it too soon for the hydrocortisone cream to really work?  Just want some peace of mind

[alittleconcerned248]

I forgot to mention that I also have a small white bump on the roof of my mouth (hard palate) that my dentist called a papilloma in passing. Not sure if he actually examined it closely, but it has also remained unchanged.