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Fluids and rest for colds — the evidence
The two interventions with no controversy. Fever and a runny nose lose water, and dehydration makes every symptom feel worse. Rest shortens nothing measurably, but sleep is when the immune response does most of its work, and pushing through a cold prolongs the misery even when it does not prolong the virus.
Lo que dice la evidencia
Verdict: Works. The two interventions with no controversy. Fever and a runny nose lose water, and dehydration makes every symptom feel worse. Rest shortens nothing measurably, but sleep is when the immune response does most of its work, and pushing through a cold prolongs the misery even when it does not prolong the virus.
Qué hacer de verdad
Drink enough that urine stays pale; warm drinks genuinely help a sore throat and congestion. Sleep more than usual, and keep the bedroom slightly humid — dry air is a sore-throat amplifier. Steamy showers help congestion; antibiotics never will.
Source: NICE CKS — common cold · checked 2026-09-07
Referencia de autocuidado, no consejo médico. Niños, adultos mayores, embarazo y cualquiera con una condición de larga duración deberían tener un umbral más bajo para llamar a un clínico. Síntomas graves o que empeoran, dificultad para respirar o confusión: busca ayuda médica.