Shiva Purana
आपूर्य्यते शिरस्तेषां तप्तैर्लोहस्य शंकुभिः ॥ नासिका वातिबहुलैस्ततः क्षारादिभिर्भृशम् ॥ २०॥
Their heads are filled with hot iron cones The nose is filled with a lot of wind and then with salt and other substances.
english translation
ApUryyate zirasteSAM taptairlohasya zaMkubhiH ॥ nAsikA vAtibahulaistataH kSArAdibhirbhRzam ॥ 20॥
hk transliteration by Sanscript