Oral Antihistamine

Oral antihistamines are drugs that are used to reduce symptoms caused by allergic reactions, such as runny nose, watery eyes, skin rashes, and itching. They work by suppressing the action of histamine, which is a natural chemical released during an allergic reaction. Some examples of oral antihistamines include Diphenhydramine, Chlorpheniramine, Levocetirizine, and Fexofenadine.

Recently Answered Questions Recently Answered Questions

All the answers published in this website are written by Verified medical doctors, therapists and health experts. The Content has been moderated by iCliniq medical review team before publication. Post your medical clarifications on iCliniq by choosing the right specialty and get them answered. Your medical queries will be answered 24/7 by top doctors from iCliniq.

What should I do to get rid of itching due to stress or exercise?

Query: Hello doctor,I am a 19-year-old athlete. I have been feeling an itchy sensation when my body gets heated, stressed, or doing any type of exercise but I do not have any hives. I have been feeling this for over a year now. Usually it comes and goes, but now it started to get strong. I stopped doing sp...  Read Full »


Dr. Sneha Mariam Varghese

Venereologist, Dermatologist

Answer: Hello, Welcome to icliniq.com. From your history about the concern, it seems like you have a mild condition of cholinergic urticaria. Cholinergic urticaria is nothing but developing itching or, in some cases, itchy bumps when there is a rise in body temperature. I want you to answer a few mor...  Read Full »

Are antihistamines safe when taken during pregnancy?

Query: Hello doctor, Can I take antihistamines (an OTC drug) when pregnant?  Read Full »


Dr. Gowrimeena

Obstetrician And Gynaecologist

Answer: Hi, Welcome to icliniq.com. Antihistamines are used to treat allergy symptoms. We have two generations of antihistamines: First generation antihistamines like Chlorpheniramine, Dimenhydrinate, Diphenhydramine, Doxylamine are considered safe to use during pregnancy. These medications have a sedati...  Read Full »

My wife has urticaria. Please help.

Query: Hello doctor, My wife has been getting a rash which the doctor has termed as urticaria. What could have caused this? I feel she could be having a yeast intolerance. Please help.  Read Full »


Dr. Kakkar

Dermatologist, HIV AIDS Specialist, Venereologist

Answer: Hello, Welcome to icliniq.com. Your wife has been treated for urticaria. I would keep a possibility of idiopathic urticaria/hives. It presents as sudden skin welts/swellings, which can be distributed all over the body. Itching is usually severe; however it is subjective in individuals. The c...  Read Full »

Why do I get frequent itchy rashes and bumps on my skin during my periods?

Query: Hi doctor, I am a 31 year old female. I have rashes and bumps, that itch and look like they are big bites, but they are not. They come and go in different places and are more frequent around the time of my periods. I have had these bumps for seven months now. I am attaching a picture, what are thes...  Read Full »


Dr. Shaikh Sadaf

Diabetologist, Endocrinologist, Family Physician, General Practitioner

Answer: Hello, Welcome to icliniq.com. I just read your query and saw the attachment provided by you (attachment removed to protect patient identity), and it appears that you have urticaria or hives in simpler terms. These usually occur when your immune system is a bit low such as during your periods, af...  Read Full »

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Disclaimer: All health Q&As published on this website are not intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek the advice from your physician or other qualified health-care providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website.