Can phlegm cause nausea?
Patient: I am nauseous, last night I had to make myself puke, and a solid substance that floated, but hit the water like a rock with a sploosh; from there strands sank off it giving it a jelly fish appearance... I felt better after this was out, but only for a few hours and am back to where I started 24 hours later... Doctor: Hi welcome to the health care magic Thick mucus or phlegm can lead nausea feeling Whenever there is damage to respiratory epithelium or inflammation,  cough production occurs as reflex mechanism and because of inflammatory mediators excess mucus production occurs Cause for phlegm should be ruled out like.... -Allergy inflammation -bronchitis -pneumonia (if fever,  chest pain present) Investigations needed like CBC,  Auscultation,  chest x ray etc... If needed spirometry done for further work up (only if needed) If these presentation  because of infection antibiotic course  prescribed.. For excess wet cough expulsion Ambroxol containing syrup can be prescribed Hope your concern solved Consult physician or pulmonologoist for examination and discuss these information with him Take care