Quick Answer. When an electron absorbs energy, it will move up from a lower energy level to a higher energy level, called the excited state of the negatively-charged subatomic particle. However, the absorbed energy is released within a small interval of time and the electron moves down to its ground state.. Continue Reading.
1 Post-inflammatory hyperpigmentation (PIH) . 2  These are dark spots that occur as a result of trauma to the skin, which can be caused by psoriasis, burns, acne, and certain skin care treatments that are hard on the skin. Don't go out in the sun with citrus juice on your face, as this can cause it to burn. 2  Always follow package directions when using home treatments for dark spot removal. 3  Make sure to use plenty of sunscreen when using any type of skin lightening product.
some viral infections such as shingles and chickenpox can also cause sore spots anywhere on the body including the scalp skin conditions such as acne can cause sore spots on the scalp this condition may result due to hormonal changes infection blocked pores ingrown hair and an incorrect diet an allergic skin reaction like contact dermatitis can be a cause of sore spots