मैं चेहरे के अनचाहे बालों को प्रभावी ढंग से कैसे हटा सकता हूँ?

The redness you see might be a cause of infection. It can be managed by washing the area properly with soap and water. Next, put an over-the-counter antibiotic ointment and cover it with a bandage. If the redness starts to expand, you get a fever, or if there is pus, seek medical help immediately.

Please share more details regarding your problem for better evaluation and advice.

For normal sensitive skin requires a sunscreen that has a broad spectrum with at least SPF level 30. Avoid products with chemical like benzophenones and camphor because they may cause skin irritation. Consult with a dermatologist for a personalized recommendation as per your skin type and condition

Your wife is likely to have an infection at the injection site. The symptoms such as heat, pain, and redness are caused when the bacteria get in. The area needs to be cleaned gently and the healthcare provider must be consulted. Antibiotics may be recommended to eliminate the infection. Do not use ice or cover it up without advice as it may aggravate the problem. 

This can happen from things such as stress, poor diet, or using harsh hair products. To grow your hair and make it silky again, try eating a well-rounded diet full of fruits and vegetables along with drinking plenty of water. Also, use gentle sulfate-free shampoos, conditioners, and other styling products on your locks.