Please choose the correct ending to complete the given sentence: Health: [header] How to read allergy skin test results [title] Make an appointment with your doctor. [step] If you develop a rash, hives, or skin irritation that you cannot determine the cause of, make an appointment with your doctor for an allergy skin test. You may also make an appointment for a skin test if you develop health issues and are not sure what is causing it.

Ending1: [substeps] Take a blood sample and write down the results of the test. This should be the first and foremost answer to any question you may have about your test. Ending2: [substeps] If you have had a cold or flu, or are currently pregnant, you may be allergic to your skin. Consult your doctor prior to attempting to take the test to confirm your allergy. Ending3: Your doctor can then recommend a skin test to help you determine what is causing your health problems. [title] Allow your doctor to clean your forearm with alcohol. Ending4: [substeps] If you have blackheads, pimples, or a burning rash, your doctor may suggest you undergo an allergy blood test to identify any potential allergies. [title] Decide how you plan to perform an allergy test.

Answer format: ending1/ending2/ending3/ending4