Tom acquiesces, his mask of perfect indifference returned. When he looks at her his eyes are blue, not black, or red. She applies the dittany to his skin, but he does not make a sound. Despite the invasion of her memories, she is gentle with him. She cradles his face in her palm to give herself better access to his injuries. It's not a tender gesture, but a utilitarian one. (His eyes never leave hers.) Somewhere in her heart Hermione knows that she would have done the same to him, that she had in fact violated Fenrir’s inner world in the same way. The parallel between herself and Tom disturbs her, encourages her to brush any stirring feelings away. The thought that she could blow his face off with a carefully timed charm soothes her nerves, if only a little.