Lump on penis

I have had this lump on the shaft of my penis for the last 3-4 months. It is soft and there is no pain. I initially didnt think anything of it but after several months I decided to get it checked out. My PCP was certain that it was syphilis, took a blood test and prescribed me doxycycline. The test came back negative for syphilis and the MD suggested that I complete one week of the doxycycline also prescribed podofilox to treat as possible genital wart. I completed the week of doxycycline and 2 rounds of the podofilox and there has been no improvement. The only thing the podofilox did was make the area swell up and turn raw . Please help!

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i appreciate any help!

The only safe thing is to get back to the MD / PCP on this …

any update?