Both women and men use hair dye to hide grey hair and preserve their youthful appearance. From previous 20 years, usage of hair colour increased exponentially. Studies in US shows 25% boost in men using hair colour. Identical research are located in different areas of earth.



Should you too often use hair colour, then you may be one of 5% individuals who underwent allergic reaction. Para-PhenyleneDiamine is a chemical substance found in most products, which stimulates hair dye allergy Aside from that, other compounds that could trigger disease are ammonia and propylene glycol.

Skin allergy is the most common allergic reaction accompanied by hair color allergy. The area around the scalp and backside of ear can get infected. Other signs include watery eyes, swollen face, and red rashes over skin and behind ears. Blister and bumps are accompanied by itching.

Dermatitis – Symptoms of Hair Allergy
As mentioned this is the most frequent allergic reaction caused by hair dey. Reaction develops when allergens in hair dye comes in contact with your skin. Immune system releases antibodies to fight such irritants, which contributes to diffrent symptoms.

Red blisters may grow along with your skin becomes red and swollen. Even eye lids, hair line, neck and beard may experience the disease.

Few among you might not encounter allergic reaction in their very first use. After the scalp becomes exposed for the next time, reaction is going to probably be triggered at 7-10 hours.

Hives
Boost levels of histamines and other chemical reactions affect blood vessels to open up and flow extra fluid, which causes swelling and itchiness over the skin. Wheezing, vomiting and difficulty in swallowing could be accompanied with this contagious symptom.

Anaphylaxis
This life threatening illness triggers because of insect, food, latex and medication allergy. Sudden drop in blood pressure, loss of consciousness and asthma are a few severe symptoms which may lead to this illness. Patient should need at medical care.
To avert this allergic reaction, apply small quantity of hair colour behind the ear and then await a few times to verify the dye is safe for you.

Hair Dye Allergy Precautions
If you have not got any allergic reaction from the above mentioned test then also you need to take certain precautionary measures.

Always wear the gloves before dying
Do not exceed the recommended time to keep the dye
Follow the instructions given in the manual carefully
Wash off the hair thoroughly


Source: https://aderonkebamidele.com/hair-dye-allergy-symptoms/