Our cat stays in at night shut in the bathroom, in the night it woke me up as it had used its dirt box, i opened the window slightly, cleaned up and shut it back in. It sleeps in the sink which is near the window. Just let it out and the tops of its ears and a few ptches on its face are covered in tiny black insects (1000's of them). I tried to spray its ears with flea spray but this is a bit tricky as i didn't want to spray its eyes
, the cat is treated for fleas and ticks. What are these little bugs? do i need to take it to the vets or do i just hope they go?