Well, yes, garlic can be helpful to pink eyes. And pink eyes can be caused by many reasons, such as irritation, infection, even some eye diseases. And according to some researches, garlic is good for people with pink eyes. And you should know that eating raw garlic while you have pink eye will help it clear up much quicker. Besides, you can have zinc supplements when you get pink eye. Just dissolve them under your tongue in order to take advantage of the anti-viral capabilities of this element, which can help treat pink eye. Anyway, you can just have a try.