I'd recommend talking with your doctor before giving an infant any kind of medication as they can easily be given too much.
My experience with L-lysene has to do with cold sores on the mouth (same virus as shingles, though), and I don't know where to tell you to find information on it, but I know a great many people who use it. I suspect the answer to be similar in both situations. At the first sign of outbreak, begin taking 2-3 capsules of L-lysene, 3-4 times a day. Continue until the outbreak begins to get better. With cold sores, this greatly shortens the duration of the outbreak. I hope it works for shingles too. Mindell's Vitamin Bible is a good source of information for holistic medication. Lysene is an amino acid that your body needs. It works for shingles, and herpes simplex I & II.
Sores inside the mouth are called canker sores.
Mouth sores are caused by Chewing Tobacco.
they are little sores in your mouth
cheilosis: crack like sores at the corner of the mouth. (lip disease)
Well, sores in your mouth could be, in fact, the indicators of the beginnings of a fatal disease. Mouth sores are normally caused by irritation, injury, infection, or even inflammitory disorders.
Sores in mouth are caused by many different factors. Those caused by physical injuries such as canker sores, are not contagious. However, mouth sores caused by virus or bacteria could be contagious through kissing.
ulcers
No, canker sores are abrasions inside your mouth and can be caused by biting your mouth, stress, drinking coffee etc. Cold sores (oral herpes) can be spread by someone else.
Mouth ulcers
Herpes
No.