PS - It wouldn’t hurt to try it.
Skullcap sources. I’m familiar with Herb Pharm and Hawaii Pharm, good companies. Some people prefer alcohol free-tincture. There are many other brands but I think these are the best ones.
https://www.amazon.com/Herb-Pharm-Certified-Alcohol-Free-Glycerite/dp/B000155MIE
Herb Pharm Certified Organic Skullcap Liquid Extract for Nervous System Support, Alcohol Free Glycerite, 4 Ounce
https://www.amazon.com/Skullcap-Scutellaria-lateriflora-Liquid-Extract/dp/B01AVJAT0K/
Skullcap (Scutellaria lateriflora) Liquid Extract 4 fl.oz