For a while now the top of my cactus had been dislodged from the rest of it, the dislodged area is brown and dead, but since the accident the area below it has also stopped growing. After 2 years of no growth I have decided to take the dead part off from the top, this has left the 'new top' area exposed and (I imagine) susceptible to various kinds of damage.
Please can someone provide information on the best course of action to ensure it continues to grow ?
Any help is very much appreciated, iv had this nipper for around 14 years. Thank you.