Detailed answer

Dark spots, also known as hyperpigmentation, are usually not directly related to respiratory infections. Dark spots are commonly caused by an overproduction of melanin, the pigment responsible for skin color. They can be triggered by factors such as sun exposure, hormonal changes, acne scarring, or skin injuries. Respiratory infections, on the other hand, are usually characterized by symptoms like coughing, sneezing, chest congestion, and difficulty breathing. However, it is important to note that certain health conditions or medications used to treat respiratory infections can potentially cause changes in skin pigmentation as side effects. If you have concerns about dark spots or any skin changes, it is recommended to consult with a dermatologist or healthcare professional for a proper examination and diagnosis.