The ornamental design for a blemishextractor, as shown and described.
FIG. 1 is a side exploded view of a blemish extractor, which includes a main portion and a removable top portion, with the top portion separated from the main portion, in accordance with the present invention;
FIG. 2 is the side view of the blemish extractor of FIG. 1, with the top portion attached to the main portion;
FIG. 3 is a top view of the blemish extractor of FIGS. 1 and 2, with the top portion attached;
FIG. 4 is a top view of the main portion of the blemish extractor of FIGS. 1 and 2 with the top portion removed;
FIG. 5 is a top view of the blemish extractor of FIGS. 1 and 2 with the top portion attached; and,
FIG. 6 is a front view of the blemish extractor of FIG. 2, the back view being the same.