Respected user, hi I evaluated your query thoroughly. * Regarding respiratory infection : - sounds underlying lung inflammation like bronchitis / else . - needs evaluation by X-ray chest ( if not done till now for diagnosis , & if done already then to measure progress by the treatment ) - till then do garlges with salted lukewarm water & peppermint oil - avoid oily / spicy / sweets / beverages / chilled items - avoid smoking / alcohol if using * Regarding chest lump , should not ignore as it may be benign external lesion or manifestation of underlying detrimental pathology . needs check up by Consultant Surgeon . Hope this clears your doubts . Welcome for any further queries . Thanks for using Healthcaremagic.com & giving me an opportunity to assist you. Wishing you fine recovery from the same. Regards dear take care.