I doubt you needed the antibiotic, and would not have prescribed it based on the symptoms you describe. That said, half the ideal dose for twice the time should be equally effective for any possible infection. Don't worry about it.
Thank you Dr. Handsfield. I have one more question as well. In regard to the doxycycline monohydrate I was prescribed, I took 1 100 mg tablet a day for 10 days vs. 2 a day for 5 days. I misread the instructions and didn't realize it until later on. Does that affect the effectiveness of the treatment and should I consult my physician?
Welcome to the STD forum.
The quick reply is no: I doubt either your penile or thigh lesions are "early signs of HPV". Most likely they aren't HPV at all.
If the bumps along the rim of your glans penis are pretty much similar in size to one another, and if they look like the PPPs you have found in online photos, then undoubtedly that is what they are.
Genital warts usually show up at sites that receive significant friction during sex, because HPV infections are acquired largely by massaging the virus into the tissues. Therefore, most cases show up on the penis. Further, a single lesion on the thigh is unlikely to be a wart. Of course I cannot be sure; the only way to know with certainty is to be professionally examined.
In the off chance you have a wart, I doubt it has anything to do with your sexual exposure only 2 months previously. Two months is about the earliest that genital warts become visible, and the average is 6-12 months.
Condoms significantly reduce the risk of HPV during any particular sexual, but over the long run the lower the chance of catching genital HPV by only about 50%. Almost all sexually active people are infected with HPV somewhere along the line, regardless of consistent condom use. Of course, condoms are always a good idea t\outside mutually monogamous relationships, to protect against all STDs.
If you follow through on your plan to see a dermatologist, ask him or her about Gardasil, the vaccine that prevents infection with four of the most troublesome types of HPV, including the two types that cause almost all genital warts. At age 26, you will become ineligible for insurance coverage for the vaccine, so I suggest you do it soon.
Best wishes-- HHH, MD