(HealthDay News) -- Antihistamines are medications used to prevent or treat allergy symptoms. Many of these medicines may be bought without a doctor's prescription.

(HealthDay News) -- Pinkeye, or conjunctivitis, is a highly contagious infection that causes eye redness, discharge and irritation.

THURSDAY, Oct. 11 (HealthDay News) -- Most Americans know what depression is and believe there is no shame in seeking treatment for the mental health condition, a new survey shows.

THURSDAY, Oct. 11 (HealthDay News) -- Good lung health may help you maintain your brain's processing speed and problem-solving abilities as you age, according to a new study.

THURSDAY, Oct. 11 (HealthDay News) -- Most eye doctors consider it their responsibility to ask older patients about driving problems, but this hit-or-miss approach may not be nearly enough to clear the roads of unsafe elderly drivers, new research suggests.

THURSDAY, Oct. 11 (HealthDay News) -- For Medicare participants, choosing the right prescription drug plan is confusing and often leads to seniors paying hundreds of dollars more a year than they need to, a new study finds.

THURSDAY, Oct. 11 (HealthDay News) -- As a nationwide outbreak of steroid-linked meningitis grabs headlines, health officials in New York City say a separate, unrelated outbreak is hitting gay and bisexual men.

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

THURSDAY, Oct. 11 (HealthDay News) -- Twelve people have now died and 137 have been sickened in the national meningitis outbreak apparently linked to contaminated steroid injections, U.S. health officials reported Wednesday.

THURSDAY, Oct. 11 (HealthDay News) -- Hispanic Americans are diagnosed with HIV infection nearly three times as often as whites, but rates and causes differ by region, a new study finds. HIV is the virus that causes AIDS.