Natural treatments for morning sickness exist. However you should be aware of the fact that their level of quality, efficacy and safety may vary.
You should always consult your healthcare provider before choosing any natural treatments for morning sickness. On its website, the Society of Obstetricians and Gynaecologists of Canada (SOGC) mentions that "Many people use natural or herbal products with the assumption that they are safer than other options. Many of these natural or herbal products have not been clinically tested to evaluate their safety and effectiveness. Even fewer products have been properly tested during pregnancy. Although a product may be considered natural, it still may contain ingredients that could harm you or your baby when used during pregnancy. Always ask your healthcare professional first."
For more information on this topic and available natural treatments for morning sickness in Canada, visit SOGC Pregnancy website.