What Is Witch Hazel and How Does It Work?
Witch Hazel is used to treat inflammation of skin and mucous membranes.
Witch Hazel is effective for itching and irritation; it is possibly effective for skin/mucous membrane inflammation.
Witch Hazel is available under the following different brand and other names: Hamamelis virginiana, and Tucks Medicated Pads.
What Are Side Effects Associated with Using Witch Hazel?
Common side effects of witch_hazel include:
- If ingested, tannins may cause nausea, vomiting, or liver damage
This is not a complete list of side effects and other serious side effects may occur. Call your doctor for information and medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What Other Drugs Interact with Witch Hazel?
If your doctor has directed you to use this medication for your condition, your doctor or pharmacist may already be aware of any possible drug interactions or side effects and may be monitoring you for them. Do not start, stop, or change the dosage of this medicine or any medicine before getting further information from your doctor, healthcare provider or pharmacist first.
Witch Hazel has no known interactions with other drugs.
This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist. Check with your physician if you have health questions or concerns.
What Are Warnings and Precautions for Witch Hazel?
Warnings
This medication contains witch hazel. Do not take Hamamelis virginiana, Tucks Medicated Pads if you are allergic to witch hazel or any ingredients contained in this drug.
Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center immediately.
Contraindications
- Hypersensitivity, oral use
Effects of Drug Abuse
- No information available
Short-Term Effects
- See "What Are Side Effects Associated with Using Witch Hazel?"
Long-Term Effects
- See "What Are Side Effects Associated with Using Witch Hazel?"
Cautions
- None
Pregnancy and Lactation
- Information is not available about use of witch hazel during pregnancy or while breastfeeding. Consult your doctor.
From 
https://reference.medscape.com/drug/hamamelis-virginiana-tucks-medicated-pads-witch-hazel-344505