Cellulitis, which is an infection of the dermis, can affect both the eyes and skin. When we suffer skin ulcer, cut, athlete's foot or even a scratch can make our immune system weak and then bacteria or germs will get into and under our skin causing such a bacterial infection of tissue. As a result, you feel unwell and then have a fever. Cellulitis around the eye, so-called periorbital cellulitis, need urgent rescue. If it left untreated, life-threatening septicaemia, an abscess forming or muscle or bone infections will occur. In conclusion, it is contagious and you need to head to doctor ask for some painkillers or antibiotics.