What should I do to no longer feel the sensation of a grain of sand inside my eye?

To stop feeling the sensation of sand in your eye, you should avoid eye showers and bathwater, as they can be irritating. If you have symptoms like redness in the whites of your eyes and yellow or green pus, Polysporin drops can help. You can also apply warm compresses and use moisturizing eye drops to reduce symptoms. If symptoms persist after 72 hours, it's recommended to consult an optometrist to determine the cause.