Conclusion
Reflexology may not be a scientifically validated medical cure for sickness, but research points to it as an effective alternative medicine, particularly for stress and anxiety.
If reflexology interests you, find a qualified practitioner who has registered with the American Reflexology Certification Board, the Complementary and Natural Healthcare Council, or another recognised certifying body.
If you have any major underlying diseases, consult your doctor before starting therapy.
References
[1] https://www.medicalnewstoday.com/articles/323454
[2] https://www.cancer.gov/about-cancer/understanding/what-is-cancer
[3] https://www.ncbi.nlm.nih.gov/pubmed/10660924
[4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3137428/
[5] https://www.nhs.uk/conditions/pre-menstrual-syndrome/
[6] https://www.healthline.com/health/premenstrual-syndrome