Thank you for contacting us with your medical questions. From you description I am not sure that you have shingles. Shingles is a reactivation of chicken pox and usually limited to one part of your body like a chest wall or an arm but does not go from your arm to your leg. It is also accompanied by severe pain and tingling.

If it is still shingle then what ever local treatment you apply that helps is fine. We treat the rash with blisters with cold compresses and covering the area.

Hope this answers your question. If you have any further questions please contact us again