Based on the symptoms described, it is possible that the rash and bumps are related to the recent course of antibiotics. However, since there is no fever and the child is still receiving the antibiotics, it is recommended to continue applying zinc cream for the rash and moisturizer for the body and face. Monitor the child's temperature and overall condition. If there is no improvement, worsening, or appearance of other symptoms, it is advisable to seek medical attention.