Without examining it is difficult to diagnose the cause for
your symptoms. It may not be due to neosporin. The causes for
the cuts or abrasions on the penile head are dryness, yeast infections, herpes, sexually transmitted diseases, genital warts, allergies and balanitis. They could also be cysts, and infected hair follicles. If there is accompanying swelling, redness, discharge and fever it is most probably an infection.