头生白屑，乃肝经风盛也。山豆根浸油涂之，或研细以乳汁调涂。
又方
白芷 零陵香（各等分）
研末，浸香油涂之，候三五日篦去。不过二三次，永不再发。
祛风换肌丸（《正宗》） 治白屑风及紫白癜疯，顽风顽癣，湿热疮疥，一切诸疮，
搔痒无度，日久不绝，愈之又发者，极宜之。
天花粉 何首乌（等分） 威灵仙 苦参 苍术 牛膝 大胡麻 生甘草 石菖蒲
川芎 当归（各减半）
上为末，新安酒叠丸绿豆大。每服二钱，白汤送下。忌牛肉、火酒、鸡、鹅、羊等发物。
《鬼遗方》云∶左额右额发赤疽，不拘大小，状如桃李，此属足阳明胃积热而成。
急宜用药贴破，见脓无害。
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王肯堂曰∶右额角一处发毒疽及恶疖，为近太阳穴。如肿满太阳，即成虚损，为
近穴而难消，不可破；如破后，外伤风水，即能害人，亦宜用药，溃脓后速敛疮口。如
经冬月，即成冷疮，缘此处近太阳穴，上至额角，都为险处，如过时溃烂，脑髓出者死。（《准绳》）
申斗垣曰∶额发在曲差穴下，（挟神庭旁一寸五分，入发际。）攒竹二穴，（一名圆柱，一名始光，
一名光明，在两眉陷中。）俱足太阳膀胱经多血少气，初发头痛憎寒，项似拔，腰如折，赤
肿宜汗之。（《启玄》）
陈实功曰∶透脑疽生在额上发际之间，多发寒热，头疼如斫，不可忍耐，先用万
灵丹发汗，解散风邪，次宜清托之。（《正宗》）
澄曰∶额疽之发，乃骨多肉少之处，溃后最忌袭风伤水，虽贴膏药，亦须遮护，庶
无破伤风湿之患。治法悉遵痈疽门治法，加引经药治之。
又曰∶凡额疽治法，悉如痈疽治法，无庸分门立方。
头部出现白色皮屑，这是肝经风邪亢盛所致。可用山豆根浸泡的油涂抹患处，或将山豆根研成细粉，用乳汁调和后涂抹。
另一方：
白芷、零陵香（各取等量）
研成粉末，浸泡在香油中涂抹，等待三至五日后用篦子刮去。不超过两三次，即可永不复发。
祛风换肌丸（出自《医宗金鉴·外科正宗》）：治疗白屑风及紫白癜疯、顽固性风疹和顽癣、湿热引起的疮疥，以及一切各类疮疡，瘙痒无度，日久不愈，愈合后又复发的情况，极为适宜。
天花粉、何首乌（等量），威灵仙、苦参、苍术、牛膝、大胡麻、生甘草、石菖蒲，川芎、当归（各减半量）。
以上药物研为粉末，用新安县产的酒反复泛制为绿豆大小的药丸。每次服用二钱，用温开水送服。忌食牛肉、烈性酒、鸡、鹅、羊肉等发物。
《鬼遗方》记载：左右额角部位发生赤疽，无论大小，形状像桃子和李子，这属于足阳明胃经积热所致。
应当紧急用药贴敷使其破溃，见到脓液排出并无害处。
[图片：额部疔疮]
王肯堂说：右额角一处发生毒疽和恶疖，因为靠近太阳穴（穴位名）。如果肿胀充满太阳穴区域，就会形成虚损，因为靠近穴位难以消散，不可切开；如果切开后，外伤导致风水之邪侵入，就能危害生命，也宜用药处理，化脓后应迅速收敛疮口。如果经过冬季，就会变成冷疮，因为此处靠近太阳穴，上至额角，都属于危险部位，如果过时溃烂，脑髓流出者死亡。（出自《医学准绳六要》）
申斗垣说：额发疽位于曲差穴下方，（在神庭穴旁一寸五分，进入发际处。）攒竹穴两个，（又名圆柱穴、始光穴、光明穴，在两眉中间的凹陷处。）这些穴位都属于足太阳膀胱经，该经多血少气，初发时头痛、怕冷，颈部感觉僵硬如拔，腰部感觉疼痛如折，红肿时应采用发汗法治疗。（出自《疮疡经验全书》）
陈实功说：透脑疽生在额头发际之间，多发寒热症状，头痛剧烈如被砍劈，难以忍受，先用万灵丹发汗，解散风邪，其次宜用清托法治疗。（出自《外科正宗》）
顾世澄说：额疽的发生，是在骨头多肌肉少的地方，溃烂后最忌讳受风和水湿侵袭，即使贴膏药，也必须加以遮盖保护，这样才能避免破伤风湿的祸患。治疗方法完全遵循痈疽门的治疗法则，加入引经药进行治疗。
又说：凡是额疽的治疗方法，都如同痈疽的治疗方法一样，不需要分门别类单独设立方剂。
White scales appearing on the head are caused by excessive wind in the Liver Meridian (Liver Channel). Soak Dougen Radix (Radix Sophorae Tonkinensis) in oil and apply it to the affected area, or grind it into a fine powder and mix with milk for topical application.
Another prescription:
Angelicae Dahuricae Radix (Baizhi) and Lingering Fragrance (Linglingxiang), each in equal parts.
Grind into powder, soak in sesame oil, and apply. After three to five days, comb off the residue. Within two or three applications, it will never recur.
Qufeng Huanji Wan (Wind-Dispel Muscle-Transform Pill) [from *Zhengzong*]: Treats Bai Xie Feng (White Scale Wind), Zibai Dianfeng (Purple Vitiligo), stubborn wind rashes and tinea, damp-heat sores and scabies, and all kinds of sores; characterized by extreme itching, chronic duration without healing, and recurrence after healing. It is highly suitable for these conditions.
Trichosanthis Radix (Tianhuafen) and Polygoni Multiflori Radix (Heshouwu), in equal parts; Clematis Root (Weilingxian), Sophora Root (Kushen), Atractylodis Rhizoma (Cangzhu), Achyranthis Bidentatae Radix (Niuxi), Sesame Seed (Dahuma), Raw Licorice Root (Sheng Gancao), Acorus Tatarinowii Rhizome (Shichangpu), Ligusticum Chuanxiong Rhizome (Chuanxiong), and Angelica Sinensis Radix (Danggui), each in half the amount.
Pulverize the above ingredients. Use wine from Xin'an County to repeatedly moisten and form pills the size of mung beans. Take 2 qian per dose, washed down with warm water. Avoid beef, strong liquor, chicken, goose, mutton, and other "fa wu" (stimulating foods that may aggravate disease).
The *Gui Yi Fang* states: Red abscesses occurring on the left or right forehead, regardless of size, resembling peaches or plums, are caused by accumulated heat in the Foot-Yangming Stomach Meridian.
Medicated patches should be applied urgently to induce rupture; the appearance of pus is harmless.
[Image: Forehead Carbuncle]
Wang Kentang stated: A toxic carbuncle or malignant boil occurring at one spot on the right forehead angle is near the Taiyang Acupoint (Sun穴). If swelling fills the Taiyang region, it leads to deficiency and depletion because it is close to an acupoint and difficult to resolve; it must not be incised. If incised, external invasion of wind-water pathogens can cause harm. Medication should still be used, and after suppuration, the wound should be closed rapidly. If it persists through winter, it becomes a cold sore. Because this area is near the Taiyang Acupoint and extends up to the forehead angle, it is a dangerous zone. If it ulcerates late and brain matter protrudes, death ensues. (*Zhunsheng*)
Shen Douyuan stated: The forehead carbuncle occurs below the Qucha Acupoint (Curving Difference), which is 1.5 cun lateral to Shenting, entering the hairline. The Cuanzhu Acupoints (Gathering Bamboo), two in number (also known as Yuanzhu, Shiguang, Guangming, located in the depressions between the eyebrows), belong to the Foot-Taiyang Bladder Meridian, which has abundant blood but scarce qi. In the initial stage, symptoms include headache, aversion to cold, neck stiffness as if pulled, and lower back pain as if broken. For redness and swelling, diaphoresis (sweating method) should be employed. (*Qixuan*)
Chen Shigong stated: Tou Nao Ju (Penetrating Brain Carbuncle) arises between the hairline of the forehead. It often presents with chills and fever, and severe headache as if hacked, which is unbearable. First, use Wanling Dan to induce sweating and dissipate wind pathogens; subsequently, employ Qing Tuo (Clearing and Supporting) methods. (*Zhengzong*)
Gu Shicheng stated: The onset of forehead carbuncles occurs in areas where bone is abundant and flesh is scant. After ulceration, one must strictly avoid exposure to wind and water. Even when applying medicated plasters, protection is necessary to prevent complications from broken skin and wind-damp invasion. Treatment methods should entirely follow those for carbuncles and ulcers, adding guiding herbs (Jing Yao) to direct the action.
He also said: All treatment methods for forehead carbuncles are identical to those for general carbuncles and ulcers; there is no need to separate them into different categories or create independent prescriptions.