Skin, Hair and Nail Problems

Hi I am observing from past two days my nails are turning blue in colour. I am concerned about why it is happening. No other symptoms observed.

Suffering from acne and pimples since 7 years,along with  white head and black heads concentrated around nose and chin, tiny bumpy skin on forehead and chin . Active acne on cheeks.  Skin type is oily.

Can anyone tell me what kinda allergy is this , it's been occuring for a while now and usually occurs in evening more.

I have developed a small cut at the edge of lips along with rough and dry lips which have to be moisturised again n again in a day

Had excessive hairfall for couple of months and which has now stopped, but hair growth has not resumed in the last few months.

Please explain these patches are on my left hand and there are more which are very small that are not captured by camera . Any meds

Started as a pen dot size about 3-4 months ago. Grown a few millimeters. Its flat, black, round, no pain, no itch. I write with this hand so lots of pen pressure on this middle finger. Cannot consult doctor due to lockdown. Should I be worried?

Observing significant hair fall since last one month. Also problem of constipation started off late.

Hi, Okay so this is strange but something I wanted to get a solution for. The problem is related to facial Goosebumps. So for eg if I do a clean shave today. And during bath, or if I hear a song that's close to my bath, or if someone touches sensitive areas of my body, or if I scratch my back or neck during bath or otherwise..I get facial Goosebumps and when I look at my face the next day. It's like I never shaved my facial hair and starts regrowth. Don't know why it happens. It's not a serious problem but something that kinda bothers me. What can be done?

It's been almost two months since I recovered from covid. I am now experiencing severe hairfall and skin allergy. I develop something like you get after a mosquito bite but it's bigger in size and the itching drives me crazy. Even my scalp is itchy. I losing hair in big chunks. Please help.