Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.
Before taking this medicine
You should not use undecylenic acid topical if you are allergic to it.
Ask a doctor or pharmacist if  undecylenic acid topical is safe to use if you have sensitive skin or allergies.
Do not give this medicine to a child without medical advice.
Ask a doctor before using this medicine if you are pregnant or breast-feeding.
