We generally tell them to start with the lowest amount suggested and work up to 10 drops 2 to 4 times a day depending on how "emotional" they are. If they clearly have emotional issues they are struggling with then we have them do them 4 times daily. Each person is different and you must gage the NEED for the individual...In class we tell you with each client we determine if they are chronic or acute and if so they must do their imprints more than twice daily...Same applies with emotions.
As far as essential oils same rule applies as to how often we have them use topically. We do not have our clients ingest the oils.