This man has always been in the news for his controversial ways of performing miracles and deliverance.

The "Prophet" Lethebo Rabalago from the Mount zion General Assembly in
Limpopo, South Africa, has been pictured using Doom (an insect killer)
to heal his followers during a service and prayer meeting over the
weekend.

Shared via the church and his alleged personal Facebook page, the
prophet is seen spraying the chemical directly on their faces and body
parts, in order to heal them.. Lol







Source: http://amala.ng/index.php/2016/11/21/omg-see-south-african-pastors-use-insecticide-heal-members/

Content of the spray might be different from what people think (an insect killer). I think he knows what he is doing.