Cross contamination is one of the most common causes of food poisoning and occurs if raw foods come into contact with ready-to-eat foods.
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Call your hotel concierge.It's not widely advertised, but many hotels offer help to guests who become ill during their stay. Your concierge can refer you to a reputable clinic, provide basic first aid supplies, or direct you to the in-house pharmacy for over-the-counter medications.
Humidify your hotel room— The air-conditioning or heating in your hotel room may aggravate a sore throat. Either carry a travel-sized humidifier or sit for several minutes in a steamy bathroom for symptomatic relief.