<s>[INST] my son just turned 5, is a little under 4 and a little under 60 lbs. in the past year, once in a while his lips would look a little puffy, red, and shiny, then once the puffiness went down and red went away, they would get dry and start to peel. in the past couple months it seems like its happening more often. currently they are a little red and peeling. for a few weeks he has been rubbing under his bottom lip with his top teeth, and its dry, peeling, and currently red. i keep telling him to stop licking his lips but don t think he can help it. i ask him if they are itchy and he says no. if he eats something salty, sometimes he ll say they hurt. haven t added any new foods to our diet, could it be allergy s? [/INST] it's probably not allergy , what happens is that his lips sometimes gets dry , usually from weather , and constant irritation of the cracks made by dryness by the child's saliva make them swell and look red , and dry again due to the inflammation process, and then he licks them again and so on ...in order to keep that from happening I recommend a moisturizer applied to the lips when dry , they are available in fruity flavours in pharmacies ( look like lip stick  ) .I hope this helps </s>