1. Soak yellowed clothes in rice water for about three to four days. You need to change the rice water every day and then clean it.

2. Adding a certain amount of salt when soaking clothes can remove the yellow color caused by sweating, which is also a good way.

3. Ammonia can remove yellow stains caused by sweat, because the sweat we produce will turn acidic after a while. Soaking it in ammonia for a while and then cleaning it will also achieve good results.

4. Bleach. This is the least recommended method because using bleach can leave chemical residue and damage clothing. Therefore, it is not recommended that you use this method, unless the above methods are not effective, then use it.