W what up New member Oct 19, 2010 #2 The normal skin test, reaction begins 5-6 hours after injection and peaks at 48-72 hours. You should have your test read at about the 3rd day. Some places will require you to retest if you wait longer than 3 days to have it read.
The normal skin test, reaction begins 5-6 hours after injection and peaks at 48-72 hours. You should have your test read at about the 3rd day. Some places will require you to retest if you wait longer than 3 days to have it read.
