How did Dende heal Android 18?

[SSJ2]

 

[Captain Cadaver]

Dende's healing would be for wounds in general, not just for a person's Ki. This should also apply for #18's cells, regardless of them lacking normal Ki.

 

[Fantastische Hure]

Electromagnetic waves.

 

[Papasmurf]

Electromagnetic waves.

Dende should've used his built-in electromagnetic vibrator on her

 

[Hector]

I don't think she was even injured. She was just unconscious.