Identifying a color fixatives allergy involves becoming familiar with the common allergic reactions to fixatives used in colorants for clothing and other items, and then pinpointing contact with these fixatives. Here is a detailed approach to this.

Understand Common Allergic Reactions

• Skin Irritation: Discomfort, redness, swelling, or the feeling of heat in the area of skin that had direct contact with the color fixatives.
• Rash or Hives: Bumpy, itchy skin or red rashes could appear within a few hours to several days after exposure.
• Respiratory Symptoms: Symptoms might include a runny or stuffy nose, a cough, or difficulty breathing, hinting at an allergenic reaction.

Recognize Exposure to Color Fixatives

• Recent Contact with New Colored Materials: Have you recently worn new colored clothing, used new colored textiles, or engaged in activities that involve color fixatives? The contact could trigger an allergic reaction.
• Elimination Process: Try to recollect if your symptoms presented after exposure to color fixatives, and not after exposure to other potential allergens.

Professional Testing

• Allergy Skin Test: An allergy specialist can perform a skin patch test to confirm your sensitivity to color fixatives.

Remember, self-diagnosing an allergy can be difficult. If you suspect you have an allergic reaction to color fixatives, consider seeking professional medical advice to confirm your suspicions and to discuss the best course of treatment.