<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi my grandson has chickenpox and has started with a chesty cough which is very moist. he does have asthma which is viral driven. he is using an inhaled steroid but not had to use his Ventolin.His spots appeared Saturday 5 days ago- do you think he needs to see a gp- he did faint yesterday - and only being 5 yrs old I know its unusual- I am a practice nurse myself so knew it was a faint as he came round very quickly when I raised his legs- but I am concerned about the cough- any advice would be helpful thankyou  <response>: Hello and welcome to Ask A Doctor. I have read your query and here is my advice. Are you certain that your grandsons rash is due to chickenpox? With the availability of the varicella chickenpoxvaccine, chickenpox is much less common than it used to be. The vaccine is given in the USA to a healthy child in two doses: at 12-15 months of age and between 4 and 6 years of age. So it is possible that he is fully immunized against chickenpox already. However, if he does have chickenpox, it is absolutely essential that you take him to the doctor immediately! A complication of chickenpox is pneumonia. You should notify the doctors office before you take your grandson in so that the doctor and staff have time to make adjustments, so other persons will not be exposed. Hope I have answered your query. If you have any further questions, I will be happy to help. 