HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Will taking a small dose of children's liquid benadryl (diphenhydramine) ease excess phlegm in the throat due to cold symptoms?

2 doctors weighed in across 2 answers

No: The dose is too samll for an adult. Benadryl (diphenhydramine) is an anti-histamine.

Answered 11/2/2016

5.2k views

Thank
Dr. Oscar Novick answered

Specializes in Pediatrics

Temorary relief: What did youhave in mindby a small dose. It may help, but it may make you sleepy.

Answered 3/28/2013

5.2k views

Thank

Related Questions

A member asked:

After I take my medicine my throat gets really numb, what could be causing that? I am taking biaxin and benadryl (diphenhydramine).

A doctor has provided 1 answer

A member asked:

What to do if i took some benadryl (diphenhydramine), (diphenhydramine) and i woke up with a sore throat. Is this a result of the benadryl (diphenhydramine)?

A doctor has provided 1 answer

A member asked:

I have a red v shaped patch over the thyroid area, thickness in my throat, no itchiness, Benadryl (diphenhydramine) didn't make it stop, it burns, what could it be?

A doctor has provided 1 answer

A member asked:

How can a mixture of Benadryl (diphenhydramine) and maalox soothe a sore throat? My pharmacist told me to try it. I always thought those were used for different things.

A doctor has provided 1 answer

A member asked:

Went er throat tight after eating oatmega snack.gave 50 benadryl (diphenhydramine) + steroid, 4 hrs later tongue feels like I burnt it, throat odd tight feeling, gerd?

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

I have expired children's liquid Benadryl (diphenhydramine) may it be used?
How much liquid children's Benadryl (diphenhydramine) can an adult take safely?
Small cluster of hives on legs every night but back and back of neck occasionally for months now. Absolutely no signs of bedbugs. Been taking benadryl (diphenhydramine)?
I took clindamycin and developed a red rash on my face neck and chest. Itches and tingled. Benadryl (diphenhydramine) has not helped. No other symptoms. What can I do?
She has a flat bumpy rash on one cheek that is spreading to the neck and forehead, no fever, cough, or any other symptoms. Benadryl (diphenhydramine) was no help.

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.