Do not kiss your pet! Do not allow your pet to take food from your mouth or have any contact with items you have had in your mouth. If you have fever blisters/cold sores – do not have any contact with your pet. If you are suffering from a cold or feel unwell- do not have any contact with your pet. Make sure you wash your hands before handling any food for your pet. Children often shed HSV1 in saliva without any fever blisters.