A study found decreased tear production in 90% of those with fibromyalgia. Experience has shown that dry mouth is also common, aggravating dental and digestive problems. In those who suddenly get a bunch of dental cavities along with their CFS/FMS, dry mouth is the usual cause. This occurs because saliva is critical for preventing dental infections.
Dry eyes and dry mouth (called "Sicca Syndrome") is treatable. It is caused by autoimmune disorders that injure the glands that make tears and saliva, but also is aggravated by nutritional deficiencies and many medications. Some doctors who are not familiar with CFS/FMS immediately think of an autoimmune disease called Sjogren’s syndrome — and go chasing the wrong problem. Though Sjogren’s syndrome can cause CFS/FMS, it is less common, and a Sjogren’s diagnosis should be confirmed with an SS-A and SS-B blood test and a simple biopsy. If you have widespread achiness and fatigue with insomnia, think fibromyalgia.
How to Treat Dry Eyes and Mouth
Check Your Medication(s) —
Many medications used in CFS/FMS cause dry eyes and mouth — and alternatives can be used that do not have this side effect. Bring this up with your doctor at your visit and ask your pharmacist if any of your medications are likely to cause dry eyes or mouth. The most common culprits include:
Treat Nutritional Deficiencies —
Symptomatic Relief for Dry Eyes —
Symptomatic Relief for Dry Mouth —