Which diseases are treated with tetracycline antibiotics?

Tetracycline antibiotics are effective in treating a variety of bacterial infections, making them particularly useful in specific conditions. Lyme disease, which is caused by the Borrelia bacteria transmitted by ticks, is commonly treated with tetracycline, especially in its early stages. This class of antibiotics is also effective against acne, which is often exacerbated by bacterial colonization of the skin. Tetracyclines work by inhibiting protein synthesis in bacteria, thus stopping their growth and allowing the body to fight off the infection more effectively.

The other options list conditions that are not primarily treated with tetracycline. The flu and cold are viral infections and do not respond to antibiotics, including tetracyclines. Diabetes is a metabolic disorder that requires management of blood sugar levels rather than antibiotic treatment, and psoriasis is an autoimmune condition that is typically managed with topical treatments or immunosuppressive drugs, not antibiotics. Similarly, asthma and allergies are also not bacterial infections, and treatments focus on managing inflammation and allergic reactions rather than employing antibiotics.