I have had white spots too most of my life 44 years. My doctor said that it is a loss of pigment, but can also be a sign of liver problems. Ask your doctor to take a look. Also, too much magnesium can cause white spots. I have white spots and am perfectly healty, so don't be too alarmed.
This forum is for questions on Heart Failure. You may want to try asking your question on one of the other forums. You might try Undiagnosed Symptoms, Pediatrics, or the Dermatology communities.
A suggestion that might help: When you post your question, try to provide any additional information so members will be able to better understand what's going on.
Take care