Final answer:
Antibiotics can cause contact dermatitis as they may act as allergens, leading to type IV hypersensitivity reactions, while diuretics, ACE inhibitors, and beta-blockers are not typical causative agents for contact dermatitis.
Step-by-step explanation:
The class of drugs that can cause contact dermatitis is Antibiotics. Contact dermatitis is a type of hypersensitivity reaction, and certain medications, including some antibiotics, can act as allergens and induce this type of skin reaction. Use of antibiotics, especially broad-spectrum ones, can disturb the natural balance of microorganisms on the skin and elsewhere, which can lead to skin irritation or inflammation resulting in dermatitis.
Type IV hypersensitivity reactions, which include contact dermatitis, typically do not involve Diuretics, ACE inhibitors, or Beta-blockers as causative agents for the condition. Instead, these reactions are more classically associated with exposures to substances like latex or certain drugs such as antibiotics. It's also important to note that treatment for various types of hypersensitivity reactions can vary, with type III hypersensitivity reactions commonly treated with anti-inflammatory steroid treatments and anaphylactic shock being treated with epinephrine.