Recently published studies show BAC nasal sprays' effects. A measure of nasal swelling and reactivity with histamine tests found that BAC induces swelling and hyperreactivity . BAC 0.15% antiseptic gel is a semisolid dermatology product. Precise skin application targets the treatment area with this design. Patients allergic to any of its ingredients should not use this antiseptic gel on open wounds, broken skin, eyes, ears, and mucous membranes due to potential harm .