Charak Samhita
सरुजः कठिनाः स्तब्धा निरास्रावाश्च ये व्रणाः । यवचूर्णैः ससर्पिष्कैर्बहुशस्तान् प्रलेपयेत् ॥१११॥
The wounds which are painful, hard, stiff and without discharge should be pasted frequently with barley powder mixed with ghrita.
english translation
sarujaH kaThinAH stabdhA nirAsrAvAzca ye vraNAH । yavacUrNaiH sasarpiSkairbahuzastAn pralepayet ॥111॥
hk transliteration by Sanscript