Patient: Diabetes was discovered in 2001. The medication was not well controlled and insulin was used for allergy. Can we continue to use insulin after desensitization treatment? Response: Please describe the manifestation of allergy. The insulin used in clinical practice now is human insulin, which strictly speaking does not cause allergy. However, because many stabilizers, fish essence protein and other excipients are added in the production process of insulin, which can cause allergy, we suggest you to use insulin from another manufacturer, and of course, desensitization therapy can also be used.