Sizing up 25 studies on over-the-counter cough medicine, a recent research review published in "The Cochrane Library" determined that there's no good evidence for or against the effectiveness of formulas such as Robitussin and Mucinex.

For natural, reliable cough relief, try a tea recipe recommended by Tieraona Low Dog, M.D., director of education at the University of Arizona's Program in Intergrative Medicine. It features thyme, which alleviates chest congestion and supports respiratory function, along with throat-soothing honey, sage, and vitamin-C-rich lemon.

Cough-Control Tea
1. Pour hot water over 2 teaspoons organic lemon rinds, 1 teaspoon sage, and 1/2 teaspoon thyme. (Dried or fresh herbs can be used.)

2. Cover and steep for 15 minutes.

3. Strain tea, then add juice of 1/2 lemon and 1 tablespoon honey.

4. Drink two to three cups daily for cough relief.