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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.
O que a evidência diz
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.
O que realmente fazer
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
Referência de autocuidado, não conselho médico. Crianças, adultos mais velhos, gravidez e quem tem uma condição de longa duração devem ter um limiar mais baixo para ligar a um clínico. Sintomas graves ou que pioram, dificuldade em respirar ou confusão: procure ajuda médica.