Sphynx cats are susceptible to acne, a skin condition caused by the accumulation of oil and bacteria on the skin's surface. Sphynx cats have a shorter hair coat than other breeds, which makes them more prone to direct contact with outside elements and also means that they can accumulate more oils and bacteria on their skin.
Cleaning blackheads regularly is one way to prevent future skin problems. If your cat has any underlying skin conditions or allergies, it's important to consult with a veterinarian before starting any cleaning regimen. However, regular cleaning of blackheads will go a long way in preventing future issues.