Hello there. I had my kids vaccinated. For my eldest she completed all the necessary vaccines and booster I may say without any complications nor allergies only slight fever. But I would like to be enlightened the possibility of being allergic to or triggers allergies if vaccinated. I do have asthma, without maintenance. I know most of the trigger factors that may lead to my asthma attack but I am wondering because my little boy who is now 5 years old had asthma, most of his attacks is upper respiratory infection. But after he took the initial shots of vaccine we noticed the dryness of his skin. That scaly skin lead him to scratch until it bleeds. Would be all the vaccine he had for that almost a year? Regards.