Hi I am a 44 year old woman, 4ft 11' and 8 1/2 stone. All my life I have had asthma and various allergies. Most nights My nose runs like mad and the constant blowing makes it sore and cause the top of one nostril to split. I can guess the cause we have a dog (I'm allergic to all furry animals) but have built up an immune but still have the occasional bout of sneezing, itchy eyes, ears throat etc which I am now resigned to. I just want to know how to prevent and treat the split on my nose, as vaseline only goes so far. Thanks