Place chile pepper in ¼ cup boiling water; let stand 30 minutes.
Drain, cool, and chop.
Peel shrimp, and devein, if desired.
Cook chile pepper, chicken broth, coconut milk, hot curry paste, and fish sauce in a saucepan over low heat, stirring often, 8 minutes.
Add shrimp, and cook, stirring often, 2 to 3 minutes or until shrimp turn pink.
Remove seasoning packets from couscous, and reserve for another use.
Stir couscous into broth mixture; remove from heat, cover, and let stand 15 minutes.
Stir in juice; sprinkle with cilantro.
Notes / Tips / Wine Advice:
For testing purposes only, we used Patak’s Original Hot Curry Paste and Marrakesh Express CousCous Grande Toasted Onion, available at Asian markets or in the ethnic-food sections of larger supermarkets.