Is it allergies, the flu, or a cold? Here's how to tell.

Cold Symptoms
• Runny or stuffy nose 
• Muscle aches (slight) 
• Cough 
• Fever (occasional, and mild) 
• Sore throat 
• Sneezing 
• Chest congestion (mild to moderate)

Flu Symptoms
• Runny or stuffy nose 
• Muscle aches (often severe) 
• Cough (can become severe) 
• Fever (usually high) 
• Sore throat 
• Chills 
• Chest congestion (can become severe) 
• Extreme tiredness (especially at the beginning of the illness) 
• Headache 
• Diarrhea and vomiting 
(especially in kids)

Allergy Symptoms
• Runny or stuffy nose 
• Coughing 
• Itchy throat 
• Sneezing 
• Headache 
• Hives 
• Itchy, bloodshot or dry eyes