The effect of applying potato slices to the armpits is reflected in the following aspects:

1. Anti-inflammatory and anti-itching: Potatoes have anti-inflammatory and sedative effects, which can treat itching in the armpits caused by sweat stimulation. It has a certain relieving effect on inflammation.

2. Relieve body odor: Potato chips are rich in starch and vitamins, which can effectively absorb sweat and secretions under the armpits and reduce the spread of body odor.