It is not normal for your 15-month-old child to not be feeling better after having tubes placed. Typically, tubes help reduce the frequency of infections. However, if the pain does not improve 3 to 5 days after they are placed, it may be necessary to have your child evaluated as a precaution. If you have already tried giving them Tylenol or Advil and the symptoms persist, it would be best to consult with a healthcare professional.