Take opinion from dermatologist

Hi there.. I can understand your worry.. postcoital pill/emergency pill contain levonorgestrol which helps by not allowing ovulation to occur and making endometrium unfavorable for pregnancy.. it's side effects are nausea, vomiting,pain abdomen, Bleeding(usually within a week of taking it), headache dizziness, fatigue, breast pain.. early bleeding only wil be this cycle, next cycle is going to be fine.. itching redness of hands may be allergic dermatitis which is not known to occur with use of emergency pills.. it could be due to allergy to metal, soap, handwash.. take antihistamines like tablet cetrizine 10mg twice daily for two days.. hope this helped you..