Medication allergies can present as an immediate severe allergic reaction, or a delayed reaction that takes days or weeks to present.
Medication allergies diagnosis is made by taking a thorough history, this includes every single medication taken and the timing of medication and allergic reaction.
Skin prick test, intra dermal test, open oral challenge test as well as patch tests are used to diagnose medication adverse reactions.
Most important part of the treatment of medication allergy is an accurate diagnosis to establish which medication is problematic and to find suitable safe alternatives.
Medication allergy can be desensitised in the case of a Penicillin allergy a temporary state of tolerating the medication if a severe infection is present.
Aspirin desensitisation can be done if it is necessary for AERD or if indicated for cardiac patients.