My child has bronchiolitis, the symptoms are becoming smaller but always starts, with a throat infec?

Colds lead to coughs. In a young child who has had an episode of bronchiolitis (usually from RSV virus infection), future colds can more easily cause coughing and wheezing, until he is a couple of years older. This is because the first episode of bronchiolitis made his lungs become very sensitive to future infections. The next nose or throat infection triggers wheezing and coughing in the sensitive lungs.
Wait a Minute. If your child has repeated episodes of "bronchiolitis" precede by a throat infection, this sounds suspiciously like asthma caused by viral triggers. You need to discuss this with your physician.