 [ Symptoms ] flu shot first of oct got hives 2 week later going on 3 months can i be allegic to done seen doctor no help not allegic to eggs big welts with a bump in the middle some the size of an egg others the size of a grapefruit they last about a week go away and come back about a week later the doctor and i have gone thru everything and i did nothing new or ate nothing new only different is the flu shot can it be the shot and how can i stop it [ Disease ] yes you can use probiotics but that will not solve the sore bottom not all diaper rashes are the same some are caused simply by the acidic irritation of having diarrhea but some can be yeast or even bacterial each would be treated differently of course since i can not diagnose your baby over the internet i can make a little suggestion that i use for my own patients use a combination of an anti yeast cream over the counter the pharmacist can help you pick one and 1 hydrocortisone cream for the inflammation rub a small amount well in those sore areas and then cover this with a barrier cream or ointment a&d desitin zinc oxide vaseline etc  change the diaper frequently and make sure you wipe of all traces of stool even if you have to give them a bath if the area is bleeding or getting worse you will need to have it examined by the pediatrician