I'm having a swelling in the Virginia not on the lips but inside. It is filled with water inside. Could you please give me a remedy

Virginia is a state in the US. I assume you mean your vagina. Are you sexually active? If so, did this happen after particularly rough sex? If not, it may be an infection such as thrush/yeast. Either way, since we cannot examine you properly, it would be dangerous to advise you on what to do. You will need to see your doctor.