Skin, Hair and Nail Problems

I am Covid recovered patient I recovered one month back and recently I observed my nails has black or blue patch like half moon at the bottom of the nail. It's increasing slightly. What is the cause and what shoudl I do now? I am attaching photos of two nails and plz let me know

I had heat rash since last 2 days ,on my face and neck . Tiny red bumps on my neck and abouve breast ,with a little hit of itching .any ointment would you suggest?

Mujhey pcos hai or mere skin par one side cheeks par acne hai jawline par or forhead par ,whiteheads, blackheads, open pores with hair bhi hai mujhy best treatment bataye

I am trying from 1 years to stop fungus on my face and using some medicine it will ok then after 2-3days it will come on my face.

I am not getting well from 1 year from face fungus. Tell me some cream antifungal that can stop and clear my face fungus.

Hi doctor, my mother is 37 years old and she has cholesterol deposits on the eyelids, it could probably be xanthelasma. It started about 4 months ago. With which medicine could she be treated. Please advise something 🙏🙏🙏

I am facing skin allergy( as shown in picture) from last 3 days around neck ( two three patch). Kindly tell me what is it and any recommended medication. Kindly refer the picture.

Hi My son is 4 years old.He is having white patch near eye corner.Please advice me good medicines so that he will be recovered.

Male, 22 I'll be mostly taking the vaccine tomorrow or day after and I have this on going medication should I stop this medication for few days after I get my vaccine or should I continue? I am taking : finasteride 1 mb tablet at night and keraboost (Biotin ,Calcium pantothenate ,Copper ,Manganese Selenium Zinc Folic acid N-acetylcysteine) tablet for hair fall every day at night Azithromycin 250 mg and isofact 10 on alternate days in the morning For acne .

My wife has a c section on 20 Dec 2020 but her scar is not healing, and sometimes it's itching and sometimes it's pain and strech and the area is getting darker day by day pls suggest me good cream.