I am curious to know how much were the SINGHS earlier using the Doctor ILAAZ for the health ? Are there any references during Guru Sahib's time or later times ?
Sri Guru Har Rae Sahib Jee used to personally prepare and dispense medicines for all they even established hospital for people and also animals to get treated at Sri Kiratpur Sahib.
From modern times we have Gurmukhs like Dr. Surinder Singh Jee and Dr. Tejinderpal Singh Jee Dulla who are famous for their medicines amongst the Singhs.