I'm a little confused, because molluscum contagiosum and tinea (ringworm) look entirely different; it is hard to imagine a provider mixing them up. On the other hand, any provider who says MC cannot be treated and advises just waiting for it to clear up on its own obviously is not very knowledgeable about it. In any case, "small skin color lesions, very small" doesn't sound like either MC or tinea, especially if persisting more or less unchanged for 8 months. It doesn't sound like any STD either, although I suppose there is a slight chance of genital warts. You might be describing prominent sweat or sebaceous glands--i.e., entirely normal.
So you need to see another health care provider, perhaps a dermatologist. If it turns out to be MC, there are several treatment options, including simply scraping off the lesions (not as painful as it sounds); freezing; imiquimod (Aldara); and others.
Good luck-- HHH, MD
On re-reading your question, I probably was too harsh on your provider, and s/he might have been right: you might have had both problems, MC for the pimple-like lesions and tinea (ringworm, i.e. jock itch) for the rash. But the persisting bumps of your penis don't sound like either one. You can either go to a dermatologist or return to your own doc; your choice.