Alternatively you can try to  remove sweat stains  with hot water, borax and Marseille soap. Then you take a bowl and pour hot water into it, which doesn’t have to be a lot. Then pour a small cup of borax and just a  tablespoon of Marseille soap  . Mix the mixture and then immerse the item to be removed. Leave to soak for at least an hour. Then wash in the washing machine.  The clothes will be very white. Another solution is to fill a bowl with hot water, add salt and lemon (five are enough for 2 liters of water). The items to be removed are soaked and  then rinsed.  You can also use filtered ash, poured into a large pot filled with water, then after 20 minutes rinse it and wash it with soap. Even in this case the result is amazing, without using harmful products. The situation is different if the  yellow stains are caused by deodorants.  These are really difficult to remove. In this case use carbonate, just one tablespoon is enough, add 3 tablespoons of water. The solution is sprayed on the areas to be treated and rubbed in. To avoid  sweat stains  , some preventive remedies can be applied. First of all, to combat sweat it is best to choose a natural anti-stain deodorant that leaves no residue and does its job very well. The best is the one that contains potassium alum.

Then, between your skin and your dress,  especially at night, it is best to wear a top, preferably made of cotton. The fabric helps you not to sweat and therefore stay cooler. But above all, it does not stain your clothes.