Abracadabra is international. I'm not familiar with such a long equivalent in English. At most we might say "abracadabra alakazam… presto changeo....", but it's not really that typical, even for magicians. Btw, we usually say for "tengo una duda" I have a "question," not "a doubt." There is a line from Shakespeare that is sometimes used by witches in fiction: http://www.dictionary.com/browse/double-double-toil-and-trouble-fire-burn-and-cauldron-bubble

Abracadabra is used in English, too. The other part is unique to Spanish much like "Sana, sana colita de rana. Si no sanas hoy. .." I could give you a literal translation, but it wouldn't sound as fun to say. :)