What’s the best way to treat the common cold?
The Evolution of Cold Remedies
Historical Treatments for Colds
- Throughout history, various treatments have been employed to address the common cold, including ancient Egyptian incantations and breast milk remedies.
- In 18th century Europe, bloodletting was a prevalent method for treating ailments.
- President Calvin Coolidge's misguided treatment in 1924 involved inhaling poisonous chlorine gas.
Understanding Cold Symptoms
- Modern pharmacies offer a wide range of cold remedies, but their effectiveness is often questioned.
- Cold symptoms arise not from the viruses themselves but from the body's immune response, particularly through cytokine release by white blood cells.
- Inflammation caused by this immune response leads to symptoms like nasal congestion and sore throat.
Types of Pharmacy Products
- Most pharmacy products contain painkillers along with other active ingredients targeting specific symptoms.
- Nasal decongestants (e.g., pseudoephedrine) reduce blood flow in nasal passages to alleviate congestion.
Mechanisms of Action
- Cough suppressants like dextromethorphan work on brain regions responsible for coughing; however, high doses can lead to hallucinatory effects due to receptor interactions similar to drugs like ketamine and PCP.
- Expectorants such as guaifenesin help hydrate mucus, making it less sticky and easier to expel rather than eliminating cough altogether.
Antihistamines and Their Effects
- Antihistamines block histamine effects which can help dry a runny nose despite histamines not being directly involved in cold symptoms.
- Diphenhydramine in Benadryl blocks both histamine effects and mucus regulation but may cause drowsiness due to its impact on wakefulness.
Efficacy of Ingredients and Holistic Remedies
- Many cold remedy ingredients do not target viruses directly; thus, their ability to speed up recovery remains uncertain.