Unfortunately, due to strict FDA laws, I am not legally able to say that CBD will help with your husbands specific condition, however I can direct you to some literature to help you better understand what CBD may offer. I have attached links below. As far as strength and dosage goes, tinctures and concentrates are absorbed the fastest since it goes directly into your blood stream; the dosage on these can be measured and controlled. Capsules take a little longer to enter your body since it goes through your digestive tract, these are also measured and controlled. I would recommend reading through our page on dosing as well to get a better understanding.
When extracting THC from the cannabis plant, it’s not easy to separate the THC from the mixture. This requires skill, expertise, and technology. Some shady brands create DIY CBD oils by using dangerous solvents, and then try to sell their products online. They sell them at extremely low prices, looking to make a quick buck. Before purchasing, always make sure that the CBD oil you are looking at has no psychoactive effects, and makes sure that it has been extracted with CO2 techniques as this ensures that no dangerous chemical solvents were used. And remember that THC is illegal in most states, so you don’t want to get on the wrong side of the law.