Pregnant women with penicillin allergy one week after the whole body itching, you can temporarily observe, local medication, oral medication treatment. 1. temporary observation: pregnant women penicillin a week after the whole body itching, considering the drug-induced allergy, if relatively minor, can subside by itself, it is recommended to relax, keep the skin clean and hygienic, do not scratch, avoid scratching, secondary bacterial infection. 2. Local medication: If the general itch is more serious, you can also use glycerin lotion to improve the symptoms. 3. Oral medication: If the symptoms are particularly serious, and the above methods of treatment are not effective, you can weigh the pros and cons of oral chlorpheniramine maleate, loratadine, vitamin C and so on. Penicillin allergy in pregnant women after a week of itching all over the body, you should go to the hospital, under the guidance of the doctor to choose the appropriate treatment, due to the special physical condition of pregnant women, you should be careful with the use of medication, the above drugs should be used in accordance with the doctor’s instructions.