Nonprescription pain relievers such as aspirin and ibuprofen can relieve pain and cut the inflammation of a sunburn. Take with food as directed on the bottle, and discontinue use if you develop stomach upset. If you can't tolerate aspirin or ibuprofen, consider taking OTC acetaminophen, which can help ease pain but won't relieve inflammation. See this list of precautions to take when using over-the-counter analgesics.
No matter which home remedy solution you choose, remember the discomfort your sunburn has caused -- and next time, take precautions to avoid overexposure to the sun. Sunburn can be relieved naturally, but it is never good for the skin.