Aside from Aloe Vera, comfrey is also an effective herb for sunburn. Comfrey has allantoin, a natural active ingredient that stimulates skin cell regeneration. Comfrey juices and lotions are widely available these days. You can apply them directly on the skin for best effects. If you can't find any comfrey creams in the market, you can simply get some leaves and stems from a comfrey plant and extract the juice yourself.