Before taking over-the-counter herbal supplements for pain, etc., how do you know which ones are safe?
Ngaphambi kokuba uqalise ukusebenzisa izongezo zamayeza enziwe ngezityalo ezithengwa ngaphandle komyalelo kagqirha ukunyanga iintlungu, njl njl., wazi njani ukuba ziziphi ekukhuselekileyo ukuzisebenzisa?