CRJ200 FAILED TO PRESSURIZE AFTER TKOF. FLT CREW RETURNED TO DEP ARPT.

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CLBING OUT OF LGA; NOTICED ACFT PRESSURIZATION PROBS. (EXCESSIVE PAIN IN EARS; LOOKED OVER AND SAW THE CABIN PRESSURE WAS CLBING RAPIDLY AND EXCESSIVELY. THEN CABIN CEASED TO CLB ANYMORE). COORDINATED WITH ATC TO LEVEL AT A SAFE ALT OF 10000 FT AND VECTORED IN TERMINAL AREA TO PROB SOLVE. I CONTACTED DISPATCH AND MAINT CTL TO WORK THROUGH THE ABNORMAL PRESSURIZATION PROB SINCE THERE WERE NO MESSAGES OR SPECIFIC QRH PROCS FOR THE CONDITION. I CONTACTED MAINT CTL SO THEY COULD HELP PROB SOLVE WITH US AND DIRECT A COURSE OF ACTION. ALL THEY ASKED WAS: DO YOU HAVE ANY MESSAGES OR DOOR OPEN INDICATIONS? NONE WERE INDICATED. I ASKED FOR THEIR RECOMMENDATIONS/THOUGHTS AND THEY DIRECTED ME TO PERFORM THE QRH. I TOLD THEM GIVEN THE CIRCUMSTANCES THERE WASN'T A CLR QRH PROC TO PERFORM. THE CLOSEST PROC WAS 'UNPRESSURIZED FLT WITH PACKS ON.' THEY DIRECTED ME TO PERFORM THE UNPRESSURIZED FLT WITH PACKS ON QRH PROC. I ASKED THEM SEVERAL TIMES TO MAKE SURE THAT IS ABSOLUTELY WHAT THEY WANTED US TO DO. THEY SAID 'PERFORM THE QRH.' I DID AS DIRECTED BY MAINT CTL SPECIALISTS. I CONTACTED MAINT CTL TO PROB SOLVE AND FEEL THEY LED US DOWN AN INCORRECT PATH BY INSISTING I PERFORM THE QRH PROC WITHOUT EVER TRYING TO PROB SOLVE OR DIAGNOSE THE PROB. THIS ULTIMATELY RESULTED IN THE CABIN CLBING EXCESSIVELY AND HAVING TO INITIATE A DSCNT AND RETURN TO LGA. NO ASSISTANCE WAS REQUIRED. IT WAS A SAFE; NORMAL AND UNEVENTFUL LNDG AT LGA. MAINT WAS PERFORMED AND WE LATER FLEW THE ACFT WITH REVENUE AS PLANNED.