10 Best Dermatologists in Sector 23

Your rabies vaccine was completed last May, so you’re protected from getting infected by it. However, if a cat bit you today, watch out for any fever, headache or weakness that is abnormal. Seek medical attention immediately should you see any of these symptoms. 

Bruising and discomfort after sclerotherapy are natural which normally resolves within a few days. But since you said your veins look worse and are more visible after the procedure could indicate a complication. It's good that you have already spoken with your doctor, but still experiencing discomfort or have any concerns, follow up with them promptly. 

In some cases the veins may fade on their own over time, but if the issue is related to the sclerotherapy procedure, additional treatment can be needed. Its best to follow up with your doctor to discuss your options and determine the best treatment.

There are many treatments for acne dark spots like chemical peels, laser treatments, certain ointments etc. But I suggest you to first visit a dermatologist in person. Based on your individual condition, the doctor will be able to recommend the best treatment for you.