Sticky Gel Offers Easy Ear Treatment for Fluid Build‑Up

Otitis media with effusion is a common ear problem where fluid stays in the middle ear for a long time. The condition is hard to treat because doctors cannot reach the middle ear easily, and many patients end up needing surgery.

Researchers created a new hydrogel called Gel‑HADA that can be placed on the eardrum. The gel hardens in about fifteen minutes thanks to an enzyme called transglutaminase, forming a thin second membrane that sticks tightly to the eardrum.

The gel can hold dexamethasone phosphate, a steroid that reduces inflammation. In a rat model of the disease, a single dose of the drug‑loaded gel lowered ear‑wall thickness, cut down inflammatory cells, and brought hearing back to normal, matching healthy animals.

Tests showed the material does not harm surrounding tissue, blood, or hearing ability. Because it works without surgery and releases medicine over several days, the Gel‑HADA system could become a practical option for treating fluid‑filled ears in people.