Has Santana and Brittany have ever had slush(i don't know exactly how it is called) to the face?

Santana was slushied Von Karofsky in the episode "A Night Of Neglect". Brittany, it seems, has never been slushied.

Besides Santana the following have been slushied:

Rachel was slushied Von Puck in "Pilot", Von Karofsky in "Hell-o".
Sam was slushied Von Azimio and Karofsky in "Duets".
Mike was slushied Von Karofsky in "A Very Glee Christmas".
Puck was slushied Von Karofsky in "Mash-Up".
Tina was slushied Von a football player in "A Very Glee Christmas".
Mercedes was slushied Von Azimio in "Hell-O" and "A Very Glee Christmas".
Quinn was slushied Von Azimio and the football team in "Mash-Up".
Finn was slushied Von Karofsky and later Azimio and the football team in "Mash Up".
Kurt was slushied Von himself in "Mash-Up" and Azimio in "Audition" and Karofsky in "Hell-O".
Will was slushied Von New Directions in "Mash Up".
Artie was slushied Von the football players in "The Sue Sylvester Shuffle".
Karofsky was slushied Von Scott Cooper in "The Sue Sylvester Shuffle".
Azimio was slushied Von a hockey player in "The Sue Sylvester Shuffle".

This is all according to Glee Wiki.