Can you be allergiec to visine eye allergy drops?

Visine allergy: There are several visine preparations containing different drugs, but most contain a topical decongestant (tetrahydrozoline) and preservative (benzalkonium chloride). True allergic reactions to either are rare, but the preservative can be irritating if you have a condition such as eczema. More likely, the topical decongestant can cause a rebound reaction with increased redness from overuse.