How do you relieve vaginal swelling?

It depends on the cause; for swelling caused by an allergic reaction to a latex condom - with your doctor's OK take 2 Benedryl antihistamine pills. Then take a cool bath or wash yourself well with a clean, wet wash cloth, then wrap a small baggie with ice cubes, in a clean, small wet towel. Put it right where it aches (externally) for about 20 minutes. If the swelling is no better in 30 minutes use the ice bag wrapped in a fresh, wet towel. If no relief after 2 ice treatments call your doctor or ER again.

Swelling after sex without a latex allergy, use the above suggestions without the Benedryl.

Swelling caused by a known yeast infection, keep your perineum clean from any of the vaginal discharge - the fungus in the overgrowth of Candida, is extremely irritating - use OTC Monistat or other anti-fungal, see your doctor if there is no improvement in 24 hours.

Swelling with a discharge could be a bacterial infection, see your doctor or health clinic ASAP for diagnoses and treatment.