You’ve caught a bad cold. Your head feels heavy and dull, like it’s stuffed with cotton. There’s no sharp pain—just an irritating pressure because your nose is completely blocked and running. Your nose keeps dripping thin, watery fluid that actually burns or irritates the skin around your nostrils. You’re constantly wiping your nose. At the same time, your eyes are watering a lot, but those tears don’t burn or sting—they’re mild and soothing. As the evening comes, your headache feels worse. When you step outside into fresh air, you suddenly feel relieved—your head feels lighter and you can breathe better. But the moment you come back into a warm room, especially after being outdoors, everything gets worse again—the headache returns and the nose starts flowing even more. Allium cepa is the suitable homeopathic remedy for this.