A sleep study (Polysomnography) involves attaching sensors to the scalp to monitor brain activity and physiological functions overnight. These sensors are secured using medical adhesives, often a strong, solvent-based material like collodion or a thick, water-resistant conductive paste. While technicians typically remove the bulk of the residue before discharge, some adhesive frequently remains bonded to the hair shaft and scalp. This hardened residue is difficult to remove with standard washing and requires specific products and techniques to safely dissolve and detach from the hair.
Preparation and Necessary Removal Supplies
Standard shampoos are ineffective against these medical adhesives because they are formulated only to remove oil and dirt. The residue is a durable, solvent-based polymer or a dense, water-resistant paste designed to maintain a secure connection. Breaking down this material requires specific solvents or surfactants.
For the most tenacious residues, a primary solvent such as 100% acetone (found in nail polish remover) or a commercial medical adhesive remover is most effective at dissolving the bond. Alternatively, for a gentler approach or if the residue is a conductive paste, skin-safe natural oils like coconut, olive, or mineral oil can penetrate and lubricate the hardened material. Successful removal also requires cotton balls or pads for application, an old towel to protect clothing and surfaces, and a fine-toothed comb to physically separate the loosened adhesive from the hair strands.
The Step-by-Step Removal Process
The removal process begins by protecting the surrounding skin and eyes, especially when using strong solvents like acetone. Carefully apply a small amount of your chosen solvent or oil to a cotton ball or pad, targeting only the areas where the glue or paste is present. This focused application minimizes exposure to the scalp and the rest of the hair.
After application, allow the solvent to work for several minutes, with oils typically requiring a longer soak time of 15 to 30 minutes to fully penetrate the residue. The goal is to saturate the adhesive completely, softening its structure so it detaches from the hair shaft. Gentle massaging of the saturated areas with your fingertips can help work the dissolving agent into the clumps of residue.
Once the adhesive feels significantly softened and pliable, the next step involves mechanical removal using a fine-toothed comb. Working on small sections of hair at a time, start combing from below the residue and carefully work your way up, using short, deliberate strokes to coax the softened material out. If you encounter resistance, reapply the solvent or oil and allow it to soak longer before attempting to comb again, which helps prevent breakage and unnecessary pulling.
Post-Removal Care and Safety
When utilizing strong chemical solvents, ensure the area is well-ventilated to avoid inhaling concentrated fumes. Discontinue use immediately if you experience burning, redness, or irritation on the scalp, and prevent solvents from dripping into the eyes. Acetone, while effective, can strip the hair and scalp of natural oils, leading to excessive dryness.
Following the successful removal of the adhesive residue, wash the hair thoroughly with a clarifying shampoo to eliminate all traces of the solvent or oil. Apply a deep conditioning treatment to the affected hair and scalp. This replenishes lost moisture and lipids, helping to soothe minor scalp irritation and restore the hair’s natural texture and resilience.