What are the symptoms of perm allergy

Many women are very keen on perming and dyeing their hair. Perming can make people's hairstyle more beautiful, but not everyone is suitable for perming. The perming agents in perming can cause great harm to the human body if used frequently. Some people in life are allergic to perming and dyeing. The symptoms of allergies to perming and dyeing hair are very obvious, so you must do an allergy test before perming. So what are the symptoms of perming allergy?

1. Hair dyeing and perming are the most common causes of allergies

Anyone would regret it if they happily dyed their hair and spent a lot of money only to get a skin disease in return. If you are lucky, you will experience symptoms such as stinging, burning or itching within a few minutes or hours after dyeing your hair. This means that the acid or alkaline of the hair dye is too strong, causing irritant contact dermatitis. As long as you rinse it quickly, you can still be treated in time. Unfortunately, most people will experience itching, erythema, desquamation, and even swelling, blisters, and exudation on their scalp 2-3 days after dyeing their hair. This is an allergic reaction. Shaving your head is inevitable because the allergic reaction will not go away as long as there is hair dye left in your hair. If the affected area is severely eroded and exudates, hospitalization may be required.

2. Side Effects

The most common side effect of hair perming and dyeing is allergic contact dermatitis. Most patients do not do skin tests or use incorrect skin test methods, resulting in scalp damage. But the consequences are much more serious than irritant contact dermatitis and are more troublesome to deal with. Therefore, it is very necessary to do a skin test in advance. Once symptoms occur, you should go to a regular hospital's dermatology department as soon as possible to avoid allergies spreading to the skin of the head, neck, and face, or even causing secondary infection.

3. Skin tests usually take two or three days

To prevent allergies, a skin test should be done before using hair dye or perm for the first time. Some people disagree, thinking that branding is a guarantee, but they still fall into the trap. Lai Wei pointed out that a brand only means good quality, but it does not mean that it will not cause allergies. It’s like having an allergic reaction to shrimp or milk. It’s because of your allergic constitution and has nothing to do with the quality of the food. However, there are many people who still have allergies after skin tests. "The problem is that the skin test is not long enough. A few tens of minutes or hours can only determine whether the dye or perm agent is irritating to the skin. Allergies usually take 2-3 days to react."