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List the medications that you are currently taking and for each medication please write down the dose of the last increase in dose. The answers should look like this - "Prozac. January 1, 1995."
Most drug rashes start within 1 to 6 weeks of initiation of therapy, however patients previously exposed to a drug may have a rash that develops within hours after taking the medicine again
If so please describe.
For most patients with a drug rash, no laboratory test is necessary. However, fever indicates a potentially serious reaction. If you have a fever, your doctor may want to order a complete blood count, with differential, a c reactive protein, and/or liver enzymes and/or kidney function tests and a urinalysis (depending on presence or absence of symptoms suggesting involvement on liver or kidney, such as change in color of urine, yellow jaundice, etcetera).