Recently had an std blood and urine sample test The

Patient: Recently had an std blood and urine sample test. The results came back negative however i still have small spots on my penis foreskin toward the head of my penis which are not painful but they have been there for few months. What could this be and what should i do

Symptoms: Spots

Doctor: Thank you for writing to us.If your blood test and the STD came back negative then I think you have a vitamin defici ency. Start by drinking lots of water. Use lube during sex. Have a lot of fruits and have 1 multivitamin pill once a day.Hope this helps you.