Stop peridex (chlorhexidine gluconate) Chlorhexidine rinse should only be used for a short period of time not constantly as it has side effects see a periodontist to evaluate your gingivitis and find the proper way to treat the disease.
Then stop. Peridex (chlorhexidine gluconate) is a rinsing solution that is useful adjunct to good oral hygiene, brushing, flossing, and seeing your dentist or periodontist on a regular basis. While nausea is not a common side effect of this medication, if it is intolerable to you, then stop. Be sure you tell your dentist that you have modified your at home treatment.