The fabric of this component can be completely washed. Look at the collar of the dress. If it is hard, wash it by hand. If the collar is soft, that is, there is no reinforced interlining, it can be machine washed.
Chemical fiber electrification is normal, and pilling depends on the density of fabric and the quality of raw materials, but normal brands will not pilling.
The suit won't fit and won't affect the skin.