Despite her hairlessness, the sphynx is not considered hypoallergenic because her skin still produces normal amounts of allergy-causing dander. Sphynx cats tend to have oily skin and need to be bathed regularly to avoid becoming greasy. Special care should also be taken to protect these cats from sunburn and skin damage, as well as from cold temperatures, although the sphynx tends to be an expert at finding snug places to curl up and get warm. Nevertheless, sweaters and coats tailored to the sphynx cat are commercially available. The ears should also be checked weekly for wax buildup and gently wiped with a cotton ball dipped in a gentle ear-cleaning solution as necessary.