Bug bites can often cause a lot of itching. Scratching may make you feel better, but breaking the skin can transfer bacteria from your hand into the bite. This can lead to an infection.

Body temperature also changes at night, which could lead to itching. Some genes that regulate circadian rhythm may have an association with itchiness at night, too. However, researchers are still ...

Exposure to chlorine can cause a dry, sore rash that may burn or itch. Over-the-counter products such as hydrocortisone cream and antihistamines can help treat the rash. Chlorine is a chemical ...