Itchy scalp. Itchy body. Worse afternoon/night. Antihistimanes no use. 2 weeks now. Wheezy chest. Penicillin allergy test negative. No nits?

Itch,wheeze. Itchy skin without a rash is often due to excessively dry skin from heating or air conditioning. Adding a humidifier should help in those cases. A wheezy chest suggests bronchitis or bronchial asthma. Treatment may require prescription for corticosteroids which may allay itching and allergies as well. I recommend seeing a physician for examination of skin,scalp and lungs and to discuss these issue.