- Phenac, belongs to the Aniline group an d was introduced into old - school practice as a remedy in febrileFeverish or marked by feverRelating to or characterized by an elevated body temperature or fever symptoms. states and neuralgias.
- Clarke added a symptom observed on a young woman who had taken Phenac, for headaches.
- She had a circumscribed rash on both cheeks which came out red, lasted four days and then peeled and as soon as it was clear the process was repeated.
- Clarke tried many remedies with varying success, but it finally disappeared under Alum.
- 30c, one powder at bedtime