Canon A580 - Manual (Page 165)

163
Appendix
Flash
z Do not operate the flash with dirt, dust or other items stuck to
the surface of the flash.
z Be careful not to cover the flash with your fingers or clothing
when shooting.
The flash may be damaged and emit smoke or noise. The resulting
heat build-up could damage the flash.
z
Do not touch the surface of the flash after taking several
pictures in rapid succession.
Doing so could result in burns.