If someone has a throat infection and is coughing up green or yellow colored sputum if such sputum is swallowed will this invalidate the fast? Similarily if someone has a runny nose from the flu or common cold which is producing clear mucus, if this mucus is swallowed will the fast be invalidated?
Answer:
Swallowing Mucus or sputun does not invalidate the fast.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai
FATWA DEPT.