dear doctor, i have problem with my down lip, it is so red and seems like become white i do not feel any pain some time it becomes dry so i try to wheten it by my tongue, the peole say i have smotach eroors or blood problems or low vitamins, so it is going to loose my mouth beauty so pls dear doctor how can you help me

                                                  i would be grateful if you kindly help me

thanks in advance