Sclerotherapy Market By Agents (Detergents, Chemical Irritants, Osmotic Agents), By Therapy (Liquid Sclerotherapy, Ultrasound-Guided Sclerotherapy, Foam Sclerotherapy, Others), By Application (Varicose Veins, Spider Veins, Telangiectasias), By End-User (Hospitals and Clinics, Dermatologists, Phlebologists) - Growth, Share, Opportunities & Competitive Analysis, 2026 - 2034