Spicy food can help with a cold primarily due to the compound capsaicin found in chili peppers. Capsaicin acts as a natural decongestant, temporarily thinning mucus and clearing nasal passages, which makes it easier to breathe[5][6]. Additionally, spicy foods can create a warming sensation that induces sweating, potentially helping to lower a fever[4][6].
Moreover, consuming spicy food can provide short-term relief for sore throats by overwhelming the pain system and making irritation feel less intense[1][2]. However, while these effects can offer temporary comfort, spicy foods are not a cure for colds[2][3].
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