What should you know about nitrogen skin tag remover?

During cryotherapy, a clinician applies liquid nitrogen to the skin tag and limits exposure to the selected area. Cold, stinging, or a brief burning sensation can occur. The treated skin may turn red, swell, blister, darken, or develop a crust before the tag dries and comes away. Healing varies with the tag's size and site, and a follow-up may be needed if tissue remains.

A skin tag is usually a soft, flesh-coloured growth that hangs from the skin, often where skin rubs against skin or clothing. A new, firm, bleeding, rapidly growing, or irregular lesion should be examined rather than frozen based on appearance alone.

Tell the clinician if the growth is near the eyelid, on genital skin, or in an area with reduced sensation. Share relevant medicines and any history of slow wound healing or unusual scarring. Once treated, keep the site clean, protect it from friction, and follow the dressing instructions. Do not cut, twist, or pull the tag yourself, and do not apply unlabelled freezing products.

If freezing is unsuitable or the diagnosis needs more certainty, a clinician may discuss [Electrosurgery](/treatments/surgical-dermatology/electrosurgery/) or another form of [Skin Tag Removal](/treatments/surgical-dermatology/skin-tag-removal/). [Cryotherapy (Lesion Removal)](/treatments/surgical-dermatology/cryotherapy-lesion-removal/) covers the freezing method.

Get medical advice if bleeding does not stop with gentle pressure, or if the treated area develops spreading redness, increasing warmth, worsening pain, pus, or fever. Ask for an examination when a growth changes, repeatedly catches and bleeds, or does not heal as expected. Prompt assessment matters when the lesion may not be a skin tag, because freezing an uncertain growth can delay the correct diagnosis.

You could ask: How did you confirm that this is a skin tag? What will the healing stages look like for this location? How should I cover it if clothing rubs against it? Which changes should lead me to contact the clinic, and what option would you consider if the tag remains?