Hi welcome to Healthcare magic forum.
Thanks for calling H.C.M.Forum.
Your grand son had
cold, you too had cold, but severe.
cough with yellow green phlem, and
wheezing,
chest pain.
Your grand son might be having viral cold, due to his resistance he had relief as per shedule of viral infection. Your cold got secondarily infected, by bacteria, hence
yellow sputum,chest pain, and wheezing. Other possibilities are eosinophelia.
You need to use medicine for reducing the phlegm, controle infection, and for wheezing controle.
I advise you to consult a chest phesician, for diagnosis and treatment. You may need tohave digital xray, besides other routine tests for confirmation.
Wishing for a quick and complete recovery.
Best regards.