Ate fish and couscous for dinner. then had 3 granadilla for dessert after washing the dishes. then suddenly broke out into an intense hot flush and now all red pink and blotchy half like being sun burned and half like a bad rash ...

Hot w/blotches: You are likely allergic to something you ate. This can be very dangerous. Please go to your emergency room ASAP. Follow up w/your family doctor. Learn what foods you may need to avoid. Allergies can develop at any age. In emergency cases your through can close. Please follow up.

Reaction: Certainly sounds like a reaction of some type, possibly an allergic reaction. Don't hesitate to be seen for it. Steroids are often used to help, particularly if it is felt to be allergic in etiology.

Allergy : Sounds like you had an acute allergic reaction to one of the foods you ate .Take Benadryl 50 mg now and repeat in 4 to 6 hours if not clear. If you develop tightness in your throat or difficulty breathing go to the ER STAT.