I have almond milk in it. My mom told me this. Yes, you can generally drink a small cup of coffee if your congestion is mild, as the warmth can help loosen mucus and the caffeine can boost your energy. Mucinex +1 Potential Benefits Temporary steam relief: Hot coffee delivers steam to your face and throat, which can help temporarily loosen nasal passages and soothe irritation. Energy and alertness: Caffeine helps combat the fatigue and grogginess that come with a cold or sinus issue. Withdrawal prevention: If you drink coffee every day, stopping cold turkey can trigger a caffeine headache on top of your congestion. www.theraflu.com +2 Drawbacks to Watch For Dehydration risk: Caffeine acts as a mild diuretic. Being well-hydrated is essential to keep mucus thin, so you should drink a glass of water for every cup of coffee. YouTube ·Daniel Monti, M.D. +1 Stomach irritation: The acidity in coffee can worsen acid reflux, nausea, or a sensitive stomach—especially if you drink it on an empty stomach. Everyday Dose +1 Jitters or high heart rate: Being sick can already elevate your heart rate or make you feel restless; caffeine can make those symptoms feel worse. Mucinex +1 Medication conflicts: Some cold and flu medications contain stimulants or interact poorly with caffeine. Everyday Dose Tips if You Decide to Drink It Stick to just 1 small cup (1 to 2 cups maximum). Yahoo +1 Pair it with a large glass of water. www.theraflu.com +1 Consider switching to decaf or a warm herbal tea (like green tea) if your body feels extra sensitive or if you are dealing with a severe illness. University of Pittsburgh Medical Center +1 According to user discussions on Reddit, many people find moderate coffee fine for a basic head cold, though personal tolerance varies widely. - @corinnafulgieri3