Hi Christine,
Chamomile is generally a very gentle and safe herb, (rarely some have an aversion to it), so it can be used either way.
Whether you take it acutely or every day, can depend on the person and what you are working to address.
For example it can be effective taken ‘acutely’ as a tea or tincture to aid in sleep or digestive upset, but can also be taken every day for a while to support more chronic sleep, digestive or nervous system concerns, depending on the situation that the individual is experiencing.
I hope that is of help.
Warmly,
Benna