If you are traveling or if a close contact has been diagnosed with Influenza (the flu), you can prevent infection by taking an antiviral medication, such as Tamiflu (oseltamivir).
If you know or suspect that you have been exposed to an STI (sexually transmitted infection), prescription medication may help prevent infection with gonorrhea and chlamydia.
Some ticks carry bacteria which can cause serious infections. Taking a single dose of a prescription medication may help prevent infection with Lyme disease.
Body lice can be spread by close contact with infested people or their clothing. They often cause intense itching. If exposed, a prescription may help you avoid infestation and symptoms.
Pertussis (whooping cough) is a very contagious disease, resulting in a cough, that can last for months. Taking antibiotics soon after exposure is the best way to prevent this illness.
Scabies is a skin infestation caused by a microscopic mite. It causes an extremely itchy rash. If you have been exposed, prescription treatment may prevent infestation and symptoms.
Pinworm infestation causes itching around the anus. It is often spread among household contacts. Prescription treatment of household contacts may prevent infestation and symptoms.
Ringworm is a contagious rash caused by tinea. This fungus infects the skin and causes a ring-shaped rash which often needs prescription treatment.