Skin, Hair and Nail Problems

I am using derma sali-cinamide serum for 8weeks now my skin get more worse than before using serum. I am using sunscreen and moisturizer constantly. What should i di?

Hello I have skin itching since past one year, I had consulted couple of dermatologists but only when I take medicines there is relief. Again the itching starts once I stop medicines. One places if it itches , then again immediately there is continuous short  itching in two other places of the whole body each time, it's like triggering other areas. I did talk to the dermatologist about, he asked me to take the tablet whenever there is itching and to ignore it. I don't have thyroid or sugar. But I take BP tablets. My ESR is 22. Is there any blood test which will identify the kind of infection I have? Pls advise

Need advice..some days back got kind of wart on soul of foot..surface got healed in 3 days..but now I am experiencing internal pain..

Since last six days I have itching in both my thighs. Today I observed that there are rashes red in colour. Please advise.

Due to threading and waxing on chin area my skin has become black, what can be the treatment used for this. I am attaching the image below. Please guide me.

I have severe dandruff problem , please suggest medicine . I am using anti dandruff shampoo daily but result are not permanent

I noticed unexpected black patches all over my hand this morning. There were no marks or symptoms until last night—it appeared suddenly. There’s no pain or itching  What could be the reason, and what should I do next?"

Can I use a pimple patch on my face? Few people say that, it will create a scar or black spot. I need your help to use it

My son is having red bumps that has yellow peeling when we peeling it and its paining whn we touch. Picture attached pls advice

Can we have an back acne due to stress? What do you think? Using DAcne soap but no result found, please suggest