Possible reasons your skin might be itchy, according to the American Academy of Dermatology Association, include: Extremely dry skin. You can treat dry skin with moisturizers, humidifiers, and shorter baths and showers. People over 65 years old are more likely to develop dry skin. Covert bug bites from bed bugs, mites, and lice. These are often not as obvious as the bumps from mosquito bites. Various medical conditions, such as hives, chickenpox, ringworm, shingles, and more. A symptom of a disease such as diabetes, blood disease, kidney disease, and liver disease. Skin cancer. Allergic reactions, which may not always include a rash. If you’re experiencing persistent itching without a rash, Harvard Medical has a quick quiz you can take to narrow down possible causes. It can’t replace a proper meeting with your doctor, but it can give you a better idea of what condition you might have. A doctor can often prescribe creams and oral medication to alleviate itching.