Husten, Halsschmerz, Schnupfen: Vitamin C? Warmes Bier? 8 Erkältungstipps im Check

As cold and coughing continue to spread, several common pieces of advice about preventing and treating colds are examined. Two experts weigh in on the merits of each.

First, you shouldn't let yourself get too cold, as that won't guarantee you catch a cold. While cold temperatures can weaken the body's defenses, viruses are still needed for infection. Eva Hummers, a director at the University Medical Center Göttingen, notes that overdressing can also prevent colds, but it can't stop them either.

Next, taking Vitamin C supplements won't prevent colds. Research shows they don't work for prevention. However, regular Vitamin C intake may shorten the duration of cold symptoms by about 10%, from 10 to 9 days, but only if started early in the illness. The average person can easily get enough Vitamin C through their diet, such as citrus fruits, peppers, cabbage, and potatoes. Routine use of Vitamin C supplements isn't necessary.

Rest and sleep are helpful, but not mandatory. Lack of sleep makes people more vulnerable to infections. If you're sick, it's good to rest, but you don't have to stay in bed if you feel fine. Light exercise is allowed, but strenuous activity should be avoided.

Applying ice to the throat can relieve pain. The cold can temporarily numb the pain, and it's beneficial for people with fever. Frozen juices or fruit yogurt can be alternatives. But overeating ice isn't necessary; it's a waste.

Warm beer is not a helpful remedy. Warm alcohol can dehydrate the body and cause faster cooling, which is counterproductive. Instead, warm tea is recommended.

Avoid nasal sprays, as they can become addictive. Saline solutions are safe for regular use. They help clear congestion and moisten the nasal lining, but don't shrink swollen tissue. Decongestant sprays can cause rebound congestion if used for too long. Saunas aren't harmful if you're healthy, but they shouldn't be used when sick due to the strain on the body.