My 75 lbs. 2 yr old lab ate about 10-20 pieces of Briareum asbestinum sometime late last night and has been having a short breathing attack followed by vomiting clear flem. This happens about every 30 mins for most of the day. She is eatting and drinking her normal amounts of food and water. Of course, it's Sunday and the vet is closed. Is there anything I can do to help her until I can take her in tomorrow? Thanks in advance.