The ornamental design of a hand-held device for treatment or control of medical condition, as shown and described.
FIG. 1 is a perspective view of a hand-held device for treatment or control of medical condition showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines in the drawings illustrate portions of the hand-held device for treatment or control of medical condition which form no part of the claimed design.