Hello, * As per my surgical experience, the skin rashes over elbow extending upto shoulder region indicate possible sensitivity to atmospheric pollen or cloth ingredient as silk or else. * The shingles do not show up in this manner, as there is intense burning pain even before skin lesion appearance in most of the cases and that too is particular dermatome distribution of concerned nerve of the region. So far as the transmission prevention to relatives is concerned, my guidelines are - cleansing with antiseptic liquid or soap - local application of aloe vera gel - consult your doc and get prescription of necessary antibiotic as cephalexin or else anti viral as acyclovir or else steroids as prednisolone or betamethasone anti histamine as cetrizine or diphenhydramine - local application of myconazole or gentamicin with beclomethasone for speedy resolution of inflammation - keeping safe distance with the kid - wearing clean, cotton clothes - avoidance of exposure to excess or prolong sun light - control of your blood sugar However, the final decision of therapy depends upon the clinical examination by an expert and this is just an opinion based on narration in your query. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr. Bhagyesh V. Patel