 [ Symptoms ] how long does it take to develop an ear infection  my daughter had a cold if she had her ears checked and they were fine but 2 days later she is tugging on her ear saying it hurts could she have developed an ear infection [ Disease ] worrying does not cure anything especially anxiety it would be impossible to determine the nature of these black spots based on a vague description so you will need a hands on professional opinion your dentist is skilled in this area but your primary care provider or an ent can also render an opinion