I came to know the honey a few years back when a friend was using it during an illness as her 'medicine' which she said had amazing healing effects.
Manuka honey contains a unique antibacterial ingredient not found in other honeys that makes it an effective antibiotic and wound healer. According to Memorial Sloan-Kettering Cancer Center, Manuka Honey has been used to promote wound healing, relieve gastrointestinal problems, has the ability to fight infectious microbes and bacteria, reduces inflammation in the body and helps with cancer treatment.
This type of honey is hard to find and I was thrilled to come across it today at the Ripe organic store (it can also be found at Spinney's and Park n' Shop supermarkets). You'll notice that the bottle has UMF 5+ on it. 'Unique Manuka Factor' commonly known as UMF is the only worldwide standard in identifying and measuring the antibacterial strength or quality of some strains of Manuka. It is a guarantee that the honey being sold to you has the special UMF antibacterial property and the number indicates the strength.
The higher the number, the higher the concentration. I usually buy UMF 10+ for daily consumption (or 5+ if they've run out of 10+!). UMF 15+ and 18+ increase significantly in price and have therapeutic concentrations - taking into consideration the significant price increase, I would recommend them more for people with chronic conditions who need the extra boost.