Red and scaly rash: **PMs PETAL**
**P**ityriasis rosea or versicolor
**M**ycosis fungoides
**P**soriasis
**E**czema
**T**inea
**A**nnular erythemas
**L**upus erythematosus and Lichen Planus
Red rash without scale: **U CAVED**
**U**rticaria
**C**ellulitis
**A**nnular erythema
**V**iral exanthem, Vasculitis
**E**rythema nodosum, Erythema multiforme
**D**rug reaction
Pustules: **II**
**I**nfective: viral, bacterial, fungal
**I**nflammatory: psoriasis, drug reaction
Blisters: **ICI**
**I**nflammatory and Immunological
**C**ontact dermatitis
**I**nfective