I experienced burining lips first after eating bbq in August, then every month since then. The triggers vary from pears, lemon pepper, hot sauce, toothpaste. So I finally went to the doctor, he prescribed Triamcinolone lip paste, and advised me to switched my tooth paste to organic Tom's tooth paste. So far my lips are better, I don't know what brought on these symptoms, but so far the tooth paste switch has helped.
Hi,
there may be many reasons for this burning. Allergy to various substances like cosmetics, food products or the sun as you have pointed out are some of them.
You should probably try and find the cause for this. You may also try using some sun screen lotion, avoiding the sun ans also the use of cosmetics which are hypoallergenic.
Further the use of antihistamines and topical lotions may be beneficial.
Let me know if you may need any more help.