Make sure you will need a wig. Not all chemo causes hair loss. If your hair is long, consider having it cut short so that switching to a wig or other headwear will be less noticeable. Hair generally falls out 2-3 weeks after your first chemo treatment. Once it starts falling out, consider having your head shaved (use an electric razor to avoid cuts). This can make you feel more in control and keeps you from waking up to find itchy hair all over your pillow. If you still need something to catch the hair, you may want to buy a Mesh Cap. Hair usually grows back about six months after chemotherapy ends. Your new hair may be curlier or straighter, thicker or finer—or even a new color. Usually this change is short term; with time your hair will very likely go back to the way it was before treatment.