She may be having an allergic reaction, so wash the affected area immediately with mild soap and water to remove any remaining makeup. You may try a simple cold compress or an over-the-counter antihistamine to help reduce the rash. Please consult a doctor promptly if her rash worsens, lasts more than a day or two, or causes swelling.

A white patch on the forehead could be caused by several conditions, such as vitiligo (a condition where the skin loses its natural colour), tinea versicolor (a fungal skin infection), or a post-inflammatory change in skin colour after a rash or injury. It is important to see your doctor or a dermatologist for an accurate diagnosis and treatment.

A little darkening around the lips and eyes is often normal and can be due to genetics, sun exposure, inflammation, or mild pigmentation. If it appears suddenly, gets worse, or is accompanied by other unusual symptoms, please consult a doctor to rule out underlying medical conditions.

Apply a gentle, fragrance-free moisturiser or emollient like plain petroleum jelly to his cheeks several times a day. Keep his skin protected from cold or dry air, and avoid harsh soaps or lotions with fragrances or alcohol, as these may worsen dryness. If the cracks do not improve or become red or oozing, consult a doctor for further advice.

If your upper eyelid is itchy and has a rash, you should see a doctor immediately because the skin around the eyes is very delicate. A doctor will determine the cause, which could be an allergy, irritation, or infection, and suggest the appropriate treatment. They may prescribe a mild steroid cream or an antihistamine eye drop that is safe for use near the eyes. In the meantime, try not to rub or scratch your eyelid, as this may worsen the irritation.

You should have genital psoriasis checked by a doctor or dermatologist, as the skin in that area is very sensitive. The doctor may advise using a simple moisturising emollient to relieve dryness and a short course of hydrocortisone cream to ease itching. Try to keep the area well moisturised, avoid friction, and stop using any product that causes irritation or redness.