Like many medications and herbal remedies, echinacea can have side effects, although not everyone will experience them.
These include symptoms of an allergic reaction, which may be severe, including but not limited to itching, hives, and swelling of the face, mouth, or throat.
If you experience any side effects while taking echinacea, stop use and speak to your doctor or pharmacist immediately if necessary.
For a complete list of potential side effects, you should read the patient information leaflet that comes with your own product.