Exposing a Recent Hair Transplant to Sunlight

I have undergone hair transplantation recently, can i wash my recepient hair with shampoo as i use to wash before transplantation, can i expose to sunlight after 3 month?

At 3 months, you can wash your hair properly as you have always done. Sunlight exposure should be in moderation and progressed to more and more sun over time. The use of a sun blocker is always a good idea unless there is so much hair that you have shade from that hair.