Eating a clove or two of fresh garlic a day may indeed keep the doctor away, in part because it has immune-boosting, antibacterial, antiviral, and anti-fungal effects. Many of garlic's therapeutic effects are derived from its sulfur-containing compounds, such as allicin, which are also what give it its characteristic smell. In general, garlic's benefits fall into four main categories:
I have been suffering from this annoying dry cough for nearly 4 months. It may be because of post nasal drip. Had tried bronchial dilator, anti histamines and antibiotic too but cough comes back again. I regularly drink ginger tea and had tried honey as well but nothing helped. I also drink lots of water. I don’t cough all the time but when it comes it doesn’t go easily.
Cannabis is a controversial subject, and really needs an article all itself. Few people understand all the political and therapeutic issues surrounding cannabis. Many people distinguish between “medical cannabis” and “marijuana.” Medical cannabis involves research into particular varieties of the cannabis plant and its therapeutic value. Many varieties are lower in THC, the component that makes people “high”, while recreational varieties of marijuana have been cultivated to maximize the amount of THC for recreational purposes. For more information see:

^ Kamin W., Maydannik V., Malek F.A., Kieser M.; Maydannik; Malek; Kieser (2010). "Efficacy and tolerability of EPs 7630 in children and adolescents with acute bronchitis: A randomized, double-blind, placebo-controlled multicenter trial with a herbal drug preparation from Pelargonium sidoides roots". International Journal of Clinical Pharmacology and Therapeutics. 48 (3): 184–191. doi:10.5414/cpp48184. PMID 20197012.
In the past, I have regarded herbs, in many cases, as a safer alternative to drugs, useful for treating various symptoms but not to treat the underlying cause. I have since revised my opinion on this quite significantly, and now realize that herbs can help support your health from a very basic level, just as foods do. In the late 1800s and early 1900s, you could walk into a drug store and find hundreds of herbal extracts for sale. Upwards of 90 percent of the population at that time knew how to use the medicinal plants growing in their backyards to treat common illnesses and injuries; they had too, as this was virtually the only "medicine" available.
My wife never left the position of being a passive participant in the healthcare system. She refused chemotherapy and its unwanted side effects, but she was unwilling to aggressively seek out alternative treatment. She did accept some alternative therapies that I could administer at home. But she would not use programs that would require intensive intervention. In part, she expected to be encouraged by her doctors to seek alternative treatment, and of course, such encouragement never came.
Cancer cells are your cells with the inherent wisdom to survive. To get them to change back into normal cells calls for an change in the internal environment. Cancer cells can grow rapidly with high toxins, low oxygen, high sugar and an acidic environment. Cancer cells would have no reason to be cancer cells if the environment had no toxins, high oxygen, low sugar and alkaline. This is because this is the environment that healthy cells thrive in. Change the environment and you can change the cancer cells back into normal cells. All alternative cancer treatments must understand this basic premise in order to be successful.
Astragalus is one of the most popular herbs in the traditional Chinese medicine system. It has been in use for over 2000 years. This herb is most often used as a diuretic and for lowering high blood pressure. Many people use it to treat upper respiratory infections as well as the common cold, as it seems to increase the production of white blood cells. Traditionally, this astragalus has also been used to increase energy, strengthen the immune system, treat excessive sweating, ulcers and diarrhea.

Many therapies have been (and continue to be) promoted to treat or prevent cancer in humans but lack good scientific and medical evidence of effectiveness. In many cases, there is good scientific evidence that the alleged treatments do not work. Unlike accepted cancer treatments, unproven and disproven treatments are generally ignored or avoided by the medical community, and are pseudoscientific.[21]

Teas are a great way to get the benefits of sage all you need to do is steep one teaspoon of sage in a cup of water for about 10 minutes. You can also make a pretty awesome sore throat reliever by combining sage and thyme. Take an ounce of both grind them, and cover them with 16 ounces of apple cider vinegar. Be sure to shake it periodically and let it sit for ten days before using.

I believe it's better to use mild remedies for minor health problems and save the more potent—and risky—prescription medications for more serious conditions. Here then, are my top 25 favorite healing herbs and their uses. All are safe and effective, but be sure to discuss any herbs you are taking with your doctor. Some herbal remedies (such as the antidepressant St. John's wort) can interact with medications. 
In Dr. Weil’s view, the principle advantage of herbs is their complexity. Medicinal plants contain a wide array of chemical compounds, which gives them versatile therapeutic powers. For example, for Andean Indians, whole coca leaf is the number one medicinal plant. They use it to treat gastrointestinal disturbances; specifically, for both diarrhea and constipation. Its ability to treat two opposite disease states springs from the fact that coca contains 14 bioactive alkaloids, some of which stimulate the gut, while others inhibit gut activity. When the whole mixture enters the body, receptors in the gut’s tissues bind to the alkaloids that are needed for the body to return it to equilibrium.
The aptly named bitter melon is thought to help cells use glucose more effectively and block sugar absorption in the intestine. When Philippine researchers had men and women take bitter melon in capsule form for three months, they had slight, but consistently, lower blood sugar than those taking a placebo. Gastrointestinal problems are possible side effects. You can reverse diabetes with these science-backed strategies.