New York ? As a pediatrician for nearly 30 years, Dr. Lillian Beard has, of course, a “tremendous amount of respect” for medicine and the people who practice it.

She acknowledges, though, that all the grandparents in the world who give children honey when they have sore throats and cover insect bites with meat tenderizer or baking soda deserve some credence and credibility, too.

For the new book “Salt in Your Sock (and Other Tried-and-True Home Remedies)” (Three Rivers Press), Beard compiled the tricks that her own patients have shared with her for treating everything from acne (wash face with granulated sugar, which acts as an exfoliating agent) to sinus problems (try a warm compress of ginger tea).

The salt-in-a-sock treatment that inspired the title can help alleviate an earache: Heat a cup of salt in a frying pan until all the granules are hot; pour the heated salt into a sock and knot the end; test the warmth of the sock to make sure it’s not hot enough to burn the skin; hold the sock against the painful ear.

“These are family recipes for wellness. … You ask, ‘How do some of these practices survive the test of time?’ The answer is, they work,” Beard says.

Beard, who practices in Silver Spring, Md., and is an assistant professor at both the George Washington University School of Medicine and Health Sciences and Howard University College of Medicine, says over the years she has noticed many similarities among the remedies.

“Almost all relate to food. The 21st century medicine cabinet is the cupboard,” she says.

For instance, garlic, which has anti-inflammatory and anti-fungal properties, was suggested as a cure for both athlete’s foot and diaper rash. And several people told Beard stories of their grandmothers wearing garlic around their necks to protect them from communicable diseases.

“At the very least, this kept people away, and communicable diseases are usually passed by close contact,” says Beard, a fellow of the American Academy of Pediatrics, with a laugh.

While her book is aimed at parents with young children, the suggestions for symptom relief would work for sufferers of any age. She even touches on joint pain, more likely to be a problem for adults than youngsters.

One of the tips for dealing with joint pain is to wear copper adornments, such as a bracelet or even copper wire around the wrist.

Beard says she’s consulted rheumatologists on this one. Most of the joint specialists had heard of the copper treatment and said it seemed to work although they couldn’t document how or why. At the very least, Beard notes, wearing a bracelet certainly won’t hurt.

The remedies in “Salt in Your Sock” aren’t lab-tested, instead they are family-tested — and then vetted by Beard for potential medical complications. She flags a suggestion to use whipped egg yolks and sugar as an elixir for the common cold because raw eggs have a risk of carrying salmonella; Beard suggests using pasteurized eggs, such as an egg substitute.

And Beard strongly speaks against what in many cultures is a common practice — giving infants alcohol. Some people use a drop of bourbon or whisky to soothe babies’ gums during teething and others whip up a hot toddy for a cough.