Here is information on the visa and the Consulate in the Dominican Republic.
http://www.usemb.gov.do/Consular/niv-learn_more.htmThe Shriners operate a network of Burn Hospitals - These are charity run hospitals - Primarily for children. They may be able to offer you some help in locating/purchasing the supplies you need and/or arranging for a emergency transfer.
http://www.shrinershq.org/Hospitals/_Hospitals_for_Children/Shriners_Hospitals/burns.aspxThe burns that you describe are VERY serious, and his chances for survival are dependent on a state of the art burn center. Even with the best treatment, survival is not certain.
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