Allergic to carboplatinum

Have been taking carboplatinum, herceptin, and taxotere since 11/4and yesterday I had a bad allergic reaction to the carboplatinum. Has this ever happened to anyone and, if so, what did your doc replace it with. Will be mtg with onc next week to discuss what to do but was wondering if anyone out there had had this problem. Any insights or guidance would be greatly appreciated. Thanks much