Dr Nicoletti said delivering an allergen, such as peanut, alongside the interleukin-12 molecule. may help to bring allergic reactions back under control.
In addition to any potentially toxic effects, fragrance is routinely listed as a substance to avoid as a potential allergen, for both adults and babies.
It also concluded that an African-American kid with an allergic parent is twice as likely to be sensitized to an environmental allergen than an African-American kid without an allergic parent.