​Comfrey's use dates back centuries to at least the time of the ancient Greeks. During the Middle Ages comfrey was a widely cultivated herb found extensively in the gardens of monasteries. Throughout the 1700's and 1800's comfrey was also a popular herb grown in many gardens across Europe as well as America. Sometime during the late 1970's however research revealed that comfrey when taken internally can cause severe liver damage so it has lost popularity and internal use is even banned in many countries. Applications in the from of ointments, poultices, or creams are still considered safe though. Comfrey can still be found growing wild in central Europe, and the eastern United States as well as  a few western states.
A dry, hacking, cough is another story. This is one we do want to stop. It can be caused by allergies, dry air, a random tickle at the back of your throat that won’t go away, the aftermath of a cold, being in a dusty environment, etc. etc. For these we turn to demulcents, ingredients that soothe irritated mucous membranes and remove the irritant triggering the cough. Studies conducted in 2004 found that the main ingredients in cough syrup (dextromethorphan and diphenhydramine) have the same effectiveness in treating coughs as a placebo ingredient. Instead of turning to chemical solutions for every minor ailment, try some home remedies instead. They are not only better for you, but they taste a whole lot better than most cough syrup too!
When selecting peppermint for your own use, the fresh leaves will impart a superior flavor to dried leaves (such as for use in tea). Look for fresh leaves that are green in color without any dark spots or yellowing. In addition to using fresh mint leaves in tea, you can add them to soups, fruit salad, or gazpacho. Additionally, it is really easy to grow peppermint yourself and the plant works as a highly effective deterrent to many insects that might invade your garden or your home.

There are actually several ways to use lemon balm making it a versatile herb both in the ailments it treats and  the way it can be administered. Teas are a great way to gain the benefits of lemon balm. You can steep about 5 or 6 fresh leaves in a cup of water for six minutes and strain. Try adding some honey or stevia to sweeten the deal up and add a little mint for an extra layer of flavor. Tinctures, extracts, and ointments are all also widely available for lemon balm and all are quite effective.
Licorice root is both an expectorant and demulcent, simultaneously soothing your airways while loosening and thinning mucous, easing congestion. It can also ease any inflammation that may be irritating your throat. Its main constituent, glycyrrhizin, is responsible for most of its effects. 30-50 times sweeter than sucrose (table sugar), it inhibits an enzyme 11beta-hydroxysteroid dehydrogenase (how would like you to write that on a name tag?) This enzyme regulates access of glucocorticoid (a steroid hormone) to steroid receptors, ultimately slowing the conversion of cortisol to cortisone. This increases the effect of cortisol and reducing inflammation. If you are on steroids, or have any problems with your kidneys, it is best to steer clear of licorice root.
It seems that every day modern medicine is telling us to take more prescription drugs. Yes, there’s a drug for everything. While some drugs are very useful and do save lives, there is a limit to how many of these the body can withstand. I believe that taking herbs whenever possible is the better and more healthy way to go. There are many herbs that work as well or better than prescription medicine for certain conditions. An example would be taking ginger rather than Dramamine. In scientific tests, ginger was found to be more effective in preventing motion sickness.
Ilex paraguariensis Yerba mate It has been claimed to have various effects on human health and these effects have been attributed to the high quantity of polyphenols found in mate tea.[97] Mate contains compounds that act as an appetite suppressant,[98] increases mental energy and focus,[99] and improves mood.[100] Yerba mate also contains elements such as potassium, magnesium, and manganese.[101]