Frontiers Drug induced hypersensitivity syndrome related to piperacillin tazobactam: a case report and review of the literature Salicylate Sensitivity: Symptoms and How To Manage That popular CJC Ipamorelin combo? It's a common cause of histamine reactions. I've experienced it 3 times: fast nausea, itchy skin, and a full body flush within minutes. It felt scary, but each time, Q: Why can peptides sometimes cause flushing, itching, or redness?, A: Because some peptides can turn that alarm up too fast., This can happen when:, The dose is high, The body absorbs it quickly,