What should i do if i have bloodshot eyes?

Lubricant: Try some lubricating eye drops, and see if it helps.

Seek help: This can be something as benign as allergies, environmental factors to more serious conditions includin chronic infection, dry eyes, or even a manifestation of systemic disease such as lupus, rheumatoid arthritis, etc, you should see your ophthalmologist and not wait.

Broad Answer: If you're looking for causes, there are a whole lot, with allergies, irritants and infection at the top of the list. If you're looking for fixes, that depends on the cause. Evaluation by a physician will narrow down the cause and help find a better, more specific treatment that can avoid unwanted side effects.

Many causes: Blood shot eyes can be due to any cause of eye irritation. See an eye doctor for further evaluation.