A child with erythematous non-blanching bosselated lesion on right side of the face, Rx is –
"Non blanching bosselated lesion on right side of the face suggests port wine stain"
Treatment of choice for port-wine stain is a yellow-pulsed dye laser often along with cryogen spray cooling.
Erbium laser
Nd–YAG laser
Flash light pumped dye laser
Q ruby laser