Possible side effects include: Blisters (possible blood blisters) around the treated area - which varies from case to case, see 'After using EndWarts FREEZE' under Cautions for Usage.
The skin losing its colour - called "depigmentation".
Minor burns and scar formation.
Risk of skin/nerve damage (in case of overexposure).
Transient disturbed sensation (tingling, prickling feeling).