An uncharacterized discharge - AKA, Entry Level Separation ("ELS") - is not a dishonorable discharge. It means merely that the individual was separated from service prior to serving 180 days. Generally speaking, these discharges are given to applicants who are disqualified from service at the time of enlistment but, for whatever reason, that disqualification was not discovered prior to enlistment.
This type of discharge is neither negative nor positive (hence, "uncharacterized") and should have no effect on anything. In effect, it's as though they never enlisted in the first place (though not quite that simple). The separation code and RE-code will provide further insight into why the discharge occurred and what, if any, eligibility may exist for future service. Usually, any subsequent enlistment will require a waiver for the underlying disqualifying condition.
In your daughter's case, the separation code of "JFW" means = "Erroneous enlistment; Medical condition disqualifying for military service, with no medical waiver approved." If she were interested in attempting to re-enlist, she would need a medical waiver for whatever that condition is.
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Information posted in these forums is my personal opinion only. It is not intended, nor should it be construed, as legal advice.