Scared I've got lung cancer cough and cold for a while today coughed and there was a tiny speech of blood, after blew my nose and there was blood ther?

Suggestions. Inflammation in the airway ( either upper or lower ) may be associated with small amounts of bleeding. If your nose is bleeding this can appear in the post nasal drainage. If you are a smoker in particular, I would suggest sputum cytologies. During a viral illness, your asthma may worsen, requiring an adjustment of your medications. VIrtual consult follow up available at Healthtap.com.