Summarize this article in one sentence.
If your excess facial sweating disrupts your daily routine or causes social withdrawal or emotional stress, contact your doctor. Your doctor will ask you about your symptoms and medical history in order to make a diagnosis. Your doctor may also run urine, blood, and other lab tests to determine if you have primary or secondary gustatory sweating. Primary gustatory sweating is caused by damaged nerves, while secondary gustatory sweating is caused by an underlying medical condition like diabetes. Apply the antiperspirant to your clean, dry face in the morning and before you go to bed. Rub it into your skin along your hairline near your forehead, temples, ears, and neck.  Before applying the antiperspirant, test it on a small area of your skin first to ensure that no irritation occurs. Ask your doctor for advice about which antiperspirants work best for gustatory sweating. There are prescription-strength topical creams that can be used to effectively control gustatory sweating. The most common is called glycopyrrolate cream. Talk to your doctor about whether this could help limit your sweating.  Talk to your doctor about how often you can use glycopyrrolate cream. Typically it is used once a day, although it can be used twice a day in extreme cases.  There are no known side effects for this medication. Oral anticholinergics, such as oxybutynin, propantheline, and benztropine, are also used to treat gustatory sweating. Anticholinergic medications are systemic medications that block the nerves that are signalling your body to sweat. Take the medication per your doctor’s instructions.  Side effects associated with anticholinergic medications include dry mouth, blurry vision, and impaired taste. If you are an athlete or someone who works outdoors, talk with your doctor about ways to prevent heat exhaustion, since anticholinergic medications decrease sweating.

Summary:
Set up an appointment with your doctor. Use an over-the-counter or prescription-strength antiperspirant. Try a topical face cream. Take an oral anticholinergic medication.