How do i find information on mastocytosis?

Skin problem: This is a skin disorder. I recommend asking a dermatologist this question.

NIH website: The national institutes of health have good information about mastocytosis on their website: http://www.Niaid.Nih.Gov/topics/mastocytosis/pages/default.Aspx the mastocytosis society is a patient-run organization, and they have some good information on their website as well: http://www.Tmsforacure.Org/welcome.Php if you have specific ?S, you should see a specialist with experience in mastocytosis.