I should have added that if any doubt remains in your mind or that of your primary care provider, you could see a dermatologist for further reassurance. Honestly, I see no need -- but if you do that, you can rely 100% on a dermatologist's opinion and advice about it.
Most HPV infections clear up entirely, even without treatment. Therefore, it is uncommon for genital warts to persist for more than a few months, and it is rare for previously resolved warts to reappear. Therefore, if your doctor believed the irregularities in your skin were due to scar tissue, that's almost certainly what is going on. My guess is that the "cream" was imiquimod (trade name Aldara). From what you say, I wouldn't have prescribed it. However, the fact that it "didn't work" is evidence that there was no active wart infection.
At this point, you should just go on without concern, secure in the knowledge that you don't still have genital warts, won't get them again, and have no persisting HPV infection, i.e. nothing you can transmit to a sex partner. Laser treatment is not indicated in situations like this. There is no laboratory test to reliably check for the virus. But you really don't need it. No worries here.
Best wishes-- HHH, MD