Often warm compresses ease the itching and pain. You can apply them a couple of times a day.
When the pink eye is due to an allergy, warm teabags might be of help.
A nasty infection is better counteracted by either boric acid, calendula or chamomile.
Take a ball of cotton wool, drange it with the liquid and clean the eye before using a compress.
Some people like the use of honey or salt water better, but be carefull...they burn.
Be careful. Pink eye is highly contageous.
One of the causes cvan be herpes simplex or herpes zoster, so stay away from small children. Babies can die from it.