Some alternative medical practices, popular globally, lack scientific evidence and are labeled pseudoscience.
Homeopathy
This medical practice uses highly diluted substances to treat symptoms based on “like cures like.” Popular in India, Germany, UK, France, Brazil.
More info: Wikipedia.
Acupuncture
Inserts needles into body points to balance energy for pain relief. Popular in China, US, Europe; used in 103 countries.
More info: Wikipedia.
Chiropractic
Manipulates spine to fix subluxations for health issues. Popular in US, Canada, Australia, Europe.
More info: Wikipedia.
Naturopathy
Employs natural remedies like herbs and diet to aid self-healing. Popular in US, Canada, Germany, Australia; in 98 countries. More info: Wikipedia.
Ayurveda
Balances doshas with herbs, diet, yoga from ancient India. Popular in India, Nepal, Sri Lanka; growing in West. More info: Wikipedia.
Reiki
Channels energy via hands for healing. Popular in US, UK, Australia, Japan; in hospitals.
More info: Wikipedia.
As mentioned in the introduction, these are considered as pseudoscience medical practices. You are free to form your own opinion.