While colds, allergies, and sinusitis share some similar symptoms, there are some key differences.
Cold: Colds often come on gradually and may be accompanied by a sore throat or fever.
Allergy: Allergy symptoms typically occur seasonally or when exposed to specific triggers and can include itchy eyes and nose.
Sinusitis: Sinusitis symptoms usually include facial pressure, pain, and thick nasal discharge that is yellow or green.