Immediate-type allergic reactions to medication are potentially life threatening and can hamper the drug therapy of several medical conditions. If no alternative drug treatment is available, a desensitisation procedure may secure the continuation of necessary therapy by inducing a temporal state of tolerance. Desensitisation is only appropriate in case of a strong suspicion of an IgE-mediated allergic reaction. It should be performed by trained clinicians (allergy specialists) in a hospital setting where treatment of a potential anaphylactic reaction can be done without any delay. In this article, literature describing desensitisation procedures for several antibiotics is reviewed.