Speedwell Herb Herbal Tea 20g(0.7oz)-1.9kg(4.2lb) Veronica Officinalis L. Veronica’s tea makes a delicious tea also known as “Swiss tea” External use: 20g. veronica in warm water for 15 minutes, apply as a compress to skin problems Use: Pour 1-2 teaspoons into a cup of warm water, soak it (infusion) for 7-10 minutes, drain it and do it.