After exposing to HIT for getting rid of cocroaches for nearly 2 months , I became allergic to HIT spray . Body started smelling like HIT spray & rashes appeared on the body with itching . Blood test proved normal . Our GP prescribed Medrol 4 mg & Allegra 120 mg . Rashes have started disappearing .The medicines I started taking Medrol from 20/8 & Allegra from 24/8. But still the smell of Hit on the body not completely gone . Steroid medicine ends today & Allegra (1 t p/d) ends on Monday .