The Compendium of Bheḷa 6.24.34

6.24.34

ambujānūpamāṃsaiś ca śirastasyopanāhayet | nasyakarma ca kurvītapicuṃ mūrdhni ca dāpayet ||

And one should apply a poultice to his head with the meat of aquatic and wetland animals; / he should perform errhine therapy and apply a swab on the head.