Ferns
Ferns don’t have flowers, which would lead to the assumption that they are hypoallergenic plants. But, as it turns out, they reproduce via spores, which could be as irritating as pollen to certain allergy sufferers.
Fern fronds could also cause contact dermatitis in people who handle them often, and these rashes are generally attributable to the spores, too.
For instance, Boston fern and staghorn fern don’t really cause allergic reactions, which might make them seem like better choices for fern lovers who are much more sensitive to other varieties.
Figs
Some decorative ficus species, like weeping figs, have some sort of latex-like protein in their sap. This automatically means that the plants could represent a problem for people who suffer from latex allergies, especially if they experience skin and eye irritation, coughing, and various other symptoms the minute they come in contact with the sap or through inhalation.
Bear in mind that brushing against some figs could also make your skin more sensitive to the sun’s ultraviolet rays, which could potentially cause burns.