Handheld Phototherapy Device

FIG. 1 illustrates a top perspective view of a handheld phototherapy device; FIG. 2 illustrates a front view of the handheld phototherapy device thereof; FIG. 3 illustrates a back view of the handheld phototherapy device thereof; FIG. 4 illustrates a left side view of the handheld phototherapy device thereof; FIG. 5 illustrates a right side view of the handheld phototherapy device thereof; FIG. 6 illustrates a top view of the handheld phototherapy device thereof; and, FIG. 7 illustrates a bottom view of the handheld phototherapy device thereof. The broken lines shown in the drawings illustrate portion of the handheld phototherapy device that form no part of the claimed design.