I've been battling with thrush for years. Then I saw the Toilet Duck product in Wilco and bought a bottle. Here's what I did:
Scraped off as much fungus from the head as possible by repeatedly scraping my toothbrush against it.
Removed the residual crust using a pumis stone (about 5 minutes).
Dried the blood with a computer screen-wipe.
Squirted a good 1/3 of the bottle all over the infected area.
Left it for 6 hours. The thrush had melted away completely, leaving a pristine pale glans as if it were brand-new although painfully stung.
Oh, and I put the toothbrush and pumis stone in the bedside table with a label on it "not for human use".
MM