It should be known that these things are quite usual and mostly innocent. They could be what is referred to as the Fordyce spots which simply put are oil glands. However, if there is any form of pain or itching accompanying them then it would be wise to see a medical practitioner who will advise accordingly. Hernias usually show themselves as bulges or swellings around the groin so there’s little chance they could be connected with the description of the said spots. To be sure, though, having them checked out by a healthcare provider would still do no harm!

I suggest you to talk to your doctor about your mother's condition. Based on your mother's condition, he may suggest some different medicine or treatment. And for blisters, making certain lifestyle changes like eating healthy food, taking rest and avoiding certain triggers can prove helpful. 

Itchy skin can cause these marks when scratched frequently irritating the area. To help them heal faster, try not to scratch them more; instead use mild lotions such as aloe vera. Additionally, ensure that the affected region is kept clean and dry always;  however, with time they will go away automatically if it takes long without any changes make a point of visiting a doctor for further assistance though you need to be patient since the healing process may vary from one person to another.

Dandruff is caused by yeast overgrowth on scalp. Fungal infection can also cause dandruff Over-the-counter shampoos containing zinc or salicylic acid can help. Antifungal shampoos can treat fungal infections. Consult a doctor if symptoms persist. 

Stubborn dandruff may be caused by a fungus on your scalp that causes the skin cells to accumulate and become flaky. Scratching too much could also be the cause of a sore head. Use a medicated shampoo that treats the fungus and calms your scalp; additionally, wash your hair gently and frequently.

It seems like your skin is dry and lacks brightness; besides the pimple scars on your nose. Skin becomes dull due to lack of water in it. Spots get darker as a result of spots. Drink water and wash your face regularly using mild soap then apply lotion too. In addition, you can wear sunscreen to prevent the darkening of these patches further.