Based on the context and the answer, generate a question. 

Context: By using ENGO to reduce friction , epidermal cell proliferation and callus thickness are reduced . Callus reduction may take one to three months due to the delay in our skins responsiveness . Engo prevent blisters from forming because Engo reduces friction to levels that prevent blisters , despite the presence of heat and moisture .

Answer:

It may help protect the skin .



What may happen during the use of ENGO ?