Glad you asked...
It is very hard to get pink and reds out of white clothing. You can use bleach to get the pink out of the clothing. You can soak them first or pre treat it to help it come out.
Then again, this answer might help you...
One way to attempt to remove a pink tinge from white clothing is by bleaching them.First be sure that the clothes can be bleached (no colored designs or writing, etc.), and try washing them again with some bleach and see if that helps. Another option is to get Color Remover from Wal-Mart or a craft store and use that on the clothes to take out the pink.

