Mr. Green had a hearing problem.
He went to see a doctor.
He told the doctor that he could not hear even his cough.
So the doctor gave him a prescription.
He asked Mr. Green to take the medicine for 7 days.
He also asked him to return for a check up seven days later.
Seven days passed.
Mr. Green went to see his doctor again.
He thanked the doctor.
He said that he could hear his cough now..
He asked his doctor what made him hear better..
The doctor said that the medicine had increased his cough.
