<p><strong>The symptoms of a hair dye allergy</strong></p> <p><br>When your skin comes into contact with p-phenylenediamine PPD (or PTD) you can see the following symptoms:<br><br>Eczema. This does not have to be limited on the scalp, it can also occur in other places such as the hands or, for example, on the back.<br>Irritated painful scalp during and after coloring<br>Itching on the scalp<br>Bumps. Small red bumps that can be very itchy<br>Tearing eyes. Thick red eyes after or during a color treatment<br>Odeem. You can get a bloated head or hands<br>Reactions to the paint seem to be getting worse</p> <h3></h3>