Am to have an ACTH test shortly but I have been using a 1% hydrocortisol cream for the past 5 days. Just wondered if this wd effect the results as I know that it is advised to leave a couple of wks after use before taking the saliva cortisol test. Also endo just said to have test in the morning but when I looked test up on Google guidance was to have test as early as pos and fast for 8 hrs. Any advice?
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