Conversation: The conversation between human and AI assistant.
[|Human|] Hi have had bother with my asthma lately with chest tightness also having pain in back on left side. Went to A&E last weekend said the xray and bloods showed an infection at the base of left. Lung. But sputum sample was clear was wondering if u have any idea whats wrong
[|AI|]  Dear User, Thanks for using Chat Doctor. Although bronchial asthma can predispose a person for infection, but it is usually not a direct cause of infection at lung base. Both the conditions are quite independent to each other. You might be knowing that having infection is a common phenomenon both in asthmatics and non asthmatics. Having said this if you are having viral infection that won't be reflected in blood test and sputum test. You are advised to take the prescribed treatment for infection and continue your treatment with asthma as usual. Thanks