I had unprotected sex over a month ago. In the mornings I am noticing this yellow/green discharge from my penis. "Itchy" urethra sometimes during the day as well as a burning sensation when I urinate sometimes. Tested negative for gonorrhoea and chlamydia. Three urin tests, came back "ok". Blood test was fine. A swab of the yellow/greenish substance came back "ok". Nothing to worry about. The doctor currently prescribed an anti fungi medication in case of a yeast infection. Help would be appreciated!
Going by history, it is difficult to confirm if this is a fungal infection.  The discharge that you are describing will usually occur in bacterial infections which has to be treated with antibiotics.  This appears to me as Atlantis.  You can consider applying my statin ointment.  Soaking with dilute aluminum acetate for 15 minutes twice daily should relieve the burning/itching.