gauze pack , także: gauze pad , także: gauze sponge
gauze swab

All he could see of him was a blanket and a big gauze pack covering the back of his head.

Her fingers walked over packets of suture materials and gauze packs, tape and vials.

"How the devil should I--" fle broke off as his eye caught sight of Benson in the adjacent cot, a huddled figure under the blankets, with only the back of his head and a big gauze pack covering his wound showing.