"My baby has been suffering from cough and cold for the last two weeks. We consulted a doctor who prescribed medication for one week, including Asthakind, Amoxicillin, and potassium clavulanate oral suspension, as well as Otrivin saline spray to be used twice daily. However, there has been no improvement, so we visited the doctor again and were prescribed Covin+ and Amoxicillin oral suspension for another week. Despite this, she still has a cough, and her nose remains blocked at times when she sleeps. The doctor mentioned that if there's still no improvement, we may need to consider a blood test. She is 5 months old. Is there any serious concern?"