Skin – Initially pruritus and stinging pain, superficial bullae appear over 24 hours. Blisters do not contain toxin
GI – abdominal pain, nausea, vomiting, diarrhea, and weight loss
Respiratory –
Usually only upper respiratory tract affected
Sinus congestion, sore throat, hoarseness.  Rarely pulmonary edema
Epithelial sloughing and pseudomembranes causing inability to clear pathogens and dead tissue.
Mucous membranes and actively reproducing cells most vulnerable to severe damage
Ocular damage – occurs within 4-8 hours
conjunctivitis, chemosis, blepharospasm, and corneal perforation at even low level exposures
Bone Marrow – Leukopenia first (3-5 days), followed by anemia and thrombocytopenia
Usually only upper respiratory tract affected
Sinus congestion, sore throat, hoarseness.  Rarely pulmonary edema
Epithelial sloughing and pseudomembranes causing inability to clear pathogens and dead tissue.
conjunctivitis, chemosis, blepharospasm, and corneal perforation at even low level exposures
Blister chemical agents
Blister chemical agents 
Toxic alcohols
Lewisite 
Bioterrorism antibiotics
Sulfur mustard 
Antiparasitic
Phosgene oxime 