I have sunburn an cant really move my neck, it is that sore, i have been web surfing and it appears that if you make tea, let it cool and dab it on your sunburn it helps draw something away therefore healing it.
to stop the burn/stinging i suggest getting a wet flannel and placing it on your sunburn, creams/lotions and pain relieve such as panadol or nurafon.
also eating tomatos helps your pigment or something build therefore reducing how badly you burn.
good luck