This is due to allergy. Such type of chemical is known to cause allergy. Allergy occurs when your immune system reacts to a foreign body. Foreign body may medicine like hair dye, pollen, animal dander, dust and insect venom etc. Chemical are known to cause contact dermatitis which is a form of allergy. The best treatment of allergy/contact dermatitis is to avoid allergens. Advice 1. Stop using all kinds of hair remover cream 2. Dexamethasone 0.5 mg orally twice daily after meal for 7 days 3. Hydroxyzine10 mg three times daily per oral daily for 5 days 4. Apply betamethasone cream locally every 8 hours for 10 days 5. Ibuprofen 600 mg orally after meal if pain occurs. Otherwise avoid it 6. Drink plenty of water at least 4 –5 liters daily 7. Do not scratch as it will cause skin damage and infection 8. Keep fingernails clean and short I hope this information will help you. I will be happy if you ask another question Thanks for asking question