Conversation: The conversation between human and AI assistant.
[|Human|] I have flu symptoms high temp, aches, head pain, cough with thick dark green/brown mucus, I have had them since Friday. Today I have detected a painful lump at the base of my sternum, it is slightly soft with pain that has increased from a dull ache to a sharp stabbing pain especially when I cough. It is about the size of a 50p coin.
[|AI|]  Welcome to Chat Doctor. I understand your concern. Prolonged cough with expectoration can cause pain in chest due to excessive straining of muscles during coughing. Finding of lump could be just an incidental finding. But yes always should rule out serious conditions. I would advise such a patient coming to me to do a USG(abdomen+Pelvis) and follow up with the reports to a surgeon for opinion and clinical examination. Hope I answered your query. For cold, you should do saline gargling in morning ad steam inhalation 3-4 times a day this will relieve your cough and cold symptoms. Thanks and regards. Take care. Be healthy.