Does it sound like warts or herpes?

Hi,
Welcome to ehealthforum,
It is difficult to comment on the skin lesions that you describe on the shaft of penis without examining them. If these have got worse, or have not resolved, you should consider getting them examined by your doctor/Andrologist at the earliest. Treatment as indicated (based on examination findings and investigations results) would be started to help you control the symptoms. Drink plenty of water. Avoid further intercourse unless cleared by your doctor. If infective cause is detected, and if you are sexually active, get your partner also treated simultaneously to prevent chances of re-infection, and avoid having intercourse while being on treatment. Be in regular monitoring and follow-up with your treating doctor and report any new/abnormal symptoms immediately.
Take care.