Sometimes, small bumps called wheals appear on the skin. (healthline.com)
In addition, the LEAP study design excluded 9.1 % of the infants who were screened (76 of 834) because large wheals (greater than 4 mm in diameter) developed after the skin - prick test21 that were probably associated with peanut allergy; the safety and effectiveness of early peanut consumption in that population remain unknown. (nejm.org)
Peanut skin prick tests also revealed smaller wheals in study participants who had received treatment compared to those receiving a placebo. (thehealthyhomeeconomist.com)