On the right a section of the skin. A lot of good bacteria and fungi live in healthy skin. Together they take care of the skin’s defenses. Also the skin of the willy.
If you use disinfectants, such as alcohol, the balance between bacteria and fungi can be disturbed. There may then be a fungal infection (white spots that itch) or a bacterial infection (red spots that hurt). Disinfectants are not healthy for a willy. Stress or the flu can also upset the balance.