Yellow spots may appear on the underarms during hot days due to the mixing of sweat with deodorant compounds.
For stubborn deodorant stains, which contain active substances of aluminum compounds, a citric acid solution may be used. Alternatively, deodorant stains can be used on the market. Rust removers can also be used to get rid of these stains. The clothes are treated with detergent and are cleaned as usual in the automatic washing machine.