At British Medical Association's annual conference in Harrogate, Dr Mark
Porter called on the government to "work with us, not against us."
A BMA survey showed that nearly 73% of the public feel health policy designed by political parties is aimed at winning votes without taking into consideration the best interest of the National Health Service (NHS).
Dr Porter said: "I fear some of our politicians are more interested in the next government than this one. It's not too late for the government to change. But first, they must face up to the damage that they have done."
Pressure from ageing population, costly drugs, increasing demand for care and the need to employ more nurses to provide high-standard treatment are placing a heavy burden on the financial resources of the NHS.
The NHS is already under pressure to show efficiency savings of £20billion during this Parliament despite the growing demand.
The finance managers have warned that due to the NHS's financial problems many more hospitals are likely to face financial losses next year.
The government has demanded hospitals to offer more services at weekends after research showed people were more likely to die if taken ill on Saturdays or Sundays.
But, doctors criticized the government's policy of trying to do more with less money as "economic illiteracy" and ridiculed plans for extension of healthcare on weekends as "just bonkers."
Dr. Porter added: 'Where we object is where the Government says the whole thing can be done without extra investment, that we can extend our opening hours by 40 per cent without any more staff. That's just bonkers.'
Senior Lib Dems is pushing George Osborne for a £2billion bailout for the NHS this autumn.
There is only little hope that the Better Care Fund, government's flagship project, to reduce hospital burden by offering homecare services by diverting £2 billion away from hospitals will be helpful in improving the services offered.
On the positive side, 92% of NHS finance bosses hope the quality of care would improve or remain the same over the next few years despite a bleak financial picture predicted.
Julia Manning, chief executive of 20/20 Health, believes that savings in billions is possible by preventing fraud and waste and earnestly made an appeal to the politicians to initiate an honest debate on what is expected of the NHS.