There are many causes for bloodshot eyes. If you want to clear up bloodshot eyes, you'd better know what are the causes. In common, lacking of sleep can also cause bloodshot eyes. If you want to clear up the redness in the eyes, getting a good sleep and rest is a good way. Besides, if you got bloodshot eyes from some eye infection or allergy, you may have to use some antibiotic eye drops to cure it. In addition, if you got bloodshot eyes from smoky environment, try drinking more water and taking more vitamins such as Vitamin A and E Supplements may help you.
This is not an easy thing,to be honest.But I still have some small tips for u.In most cases,red eyes r caused by enlarged blood vessels and some kinds of eye allergies.And we also can't exclude the reasons that can be eye infection or and so on.As far as what I know,coughing and some irritants can also get ur red eyes.U had better get enough rest and sleep.In ur daily life,u also need to make ue eyes clean.Never rub ur eyes at any time.