Allergic reactions...how long does it take to recover from an allergic reaction from a diet pill?it happened this morning and im still miserable.

Depends on reaction: And how severe it was, if you are still feeling bad you should call your doctor and give them details of your reaction and get their advice, .

What kind?: I suspect what you have described is more like an over-reaction to diet pill in some people . In which case, the reaction may be jitteriness, shakiness, anxiety, tremor, or palpitation. It may be an allergic reaction if an itchy rash developed after having taken the diet pill. Thus the answer depends on what kind of reactions you are having and the life of the drug in your system (usually.