I believe coconut oil is one of the most healing oils. It is an anti fungel and one of the side effects is that in the begining you may experience die off. This is comon so do not be discouraged if that happens. Although you will feel bad, it is actually part of the healing process.
One of the best sources is Tropical Traditions. Their products are 100% natural without chemicals, so all the healing properties are retained. They seem to always have coupons, including BOGO and free shipping. No need to pay full price. They also sell coconut cream and grated coconut, all excellent. They also have a great recipe section that uses ther products. Very highly recommended.
It is my understanding that coconut water is very different and used for different things than the oil. Coconut water is high in natural electrolyes. It can be made with green or more mature coconuts. Green coconuts have a high poly/di scharides content which is bad for many chrohn's folks (including me). Also, most packaged cocnut water has additives that I would not take. Water is not an antifungel.