Hello and welcome to HCM
You need to get a microbilogical examination of the discharge oozing out from the penis.
Yhere is a definite infection, bet the type will only be known after examining the discharge.
Presence of pain in the neck region can be related to this infection which may be causing the enlargement of the lymph
nodes in the neck.
If the lymph nodes are palpable, get a FNAC done.
Isolation of any particular organism will only guide in tailoring the treatment for you.
Thanks and take care
Dr Shailja P Wahal