For chickenpox, take Paracetamol for body pain and fever; avoid Ibuprofen or Aspirin as they can cause complications. Use Calamine lotion and oral antihistamines to soothe itching. Consult your doctor for antiviral medications if needed. Precautions: Avoid scratching blisters to prevent scarring and secondary bacterial infections. Wear loose cotton clothing and stay hydrated. Regarding work: No, you must not go to work. Chickenpox is highly contagious. Strict isolation and bed rest are mandatory until all your blisters have completely crusted over (typically 5 to 7 days) to allow your body to recover and prevent spreading the virus to others.