Hi,
Noted your history about the swelling with blood on penis, fungal treatment and so on.
The commonest cause of swelling can be one of the following:
There would have been rupture of the major vein or development of
aneurysm type problems hence you are getting blood filled swelling
of the penis on erection.
This can be diagnosed by the following ways:
An actual examination by a Doctor or an
Urologist .
Ultrasonography with color doppler.
These will give a proper diagnosis and thus allow a proper management.
Do not apply anything on your own for the fungal problems,
consult a Dermatologist for proper diagnosis and management.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, General Surgeon