After sclerotherapy, the treated veins need time to seal shut and be reabsorbed by your body. What you do in the first one to two weeks can either support that process or undermine it. The main things to avoid are strenuous exercise, heat exposure, prolonged sun on treated areas, and long periods of sitting or standing still.
Hard Exercise and Heavy Lifting
The most consistent recommendation from vascular specialists is to skip intense workouts for at least one to two weeks. That includes running, cycling, weightlifting, squatting, and any high-impact aerobic activity. The concern is twofold: vigorous movement increases blood flow and pressure in your leg veins, which can force treated veins back open before they’ve had a chance to fully collapse and scar closed. Heavy lifting and straining also spike pressure in your abdomen, which pushes directly down into the veins of your legs.
Walking, on the other hand, is encouraged. Most providers recommend daily walking starting immediately after the procedure. It keeps blood circulating through the deeper veins and helps prevent clots, without generating the kind of pressure that threatens the treated vessels. Think of it as a sweet spot: enough movement to support healing, not so much that you’re working against it.
The typical timeline is seven days for moderate exercise and up to two weeks before returning to anything strenuous. Your provider may adjust this depending on how many veins were treated and their size.
Hot Baths, Saunas, and Steam Rooms
Heat causes your veins to dilate. That’s normally harmless, but after sclerotherapy it’s the opposite of what you want. The whole point of the procedure is to make treated veins shrink and stick closed. Exposing your legs to high temperatures in the first week can cause those veins to expand back open, reducing the effectiveness of the treatment.
Avoid hot baths, hot tubs, saunas, and steam rooms for at least the first week. Hot showers are in the same category. Warm showers are generally fine after 48 hours, but keep the water temperature moderate and don’t linger. If you normally take baths to relax, switch to lukewarm for that first week.
Sun Exposure on Treated Skin
Hyperpigmentation, a darkening of the skin along the path of the treated vein, is one of the most common side effects of sclerotherapy. It occurs in up to 30% of cases, and UV exposure makes it significantly more likely. The inflammation from the procedure leaves the skin over treated veins vulnerable to producing excess pigment when hit by sunlight. In most people, this discoloration fades over months, but in some cases it can persist for a year or longer.
Keep treated areas out of direct sunlight for at least two weeks, and ideally longer. If you can’t avoid sun exposure, cover the areas with clothing or use a high-SPF sunscreen. This is especially important if you have a darker skin tone, which carries a higher baseline risk of post-inflammatory pigmentation. Tanning beds count as UV exposure and should be avoided on the same timeline.
Prolonged Sitting and Standing
Staying in one position for long stretches slows blood flow in your legs and increases the risk of clotting. This matters more than usual after sclerotherapy because the treatment itself creates controlled inflammation inside veins, and stagnant blood in nearby vessels can tip toward unwanted clot formation.
If your job involves sitting at a desk, get up and walk for a few minutes every hour. If you’re on your feet all day, take breaks to sit with your legs elevated. The goal during the first week or two is consistent, gentle movement throughout the day rather than long blocks of being still.
For the same reason, long car rides or flights in the days immediately following treatment deserve extra caution. If you need to travel, wear your compression stockings, stay hydrated, and move your legs frequently. Most providers suggest avoiding flights longer than four hours for at least a week after the procedure.
Skipping Your Compression Stockings
Compression stockings aren’t optional after sclerotherapy. They apply steady pressure that keeps the treated vein walls pressed together while they scar shut. Without that external support, blood can re-enter the vein and prevent it from closing properly.
Most providers recommend wearing compression stockings continuously for the first 48 to 72 hours, including while sleeping. After that initial stretch, you’ll typically wear them during waking hours for one to two weeks. The exact schedule depends on the size of the veins treated. Spider veins may need a shorter compression period, while larger varicose veins usually require longer. Resist the urge to ditch them early because they’re uncomfortable. This is one of the biggest factors in whether the treatment works the first time.
Anti-Inflammatory Medications
This one surprises many people: common pain relievers like ibuprofen and aspirin can interfere with healing after sclerotherapy. The procedure works by triggering a controlled inflammatory reaction inside the vein, which causes the walls to stick together and eventually be absorbed. Anti-inflammatory drugs dampen exactly that response, potentially making the treatment less effective.
If you need pain relief in the days after the procedure, acetaminophen (Tylenol) is typically the recommended alternative since it manages pain without suppressing inflammation. Check with your provider about any medications or supplements you’re already taking, particularly blood thinners or fish oil, which can also affect the process.
What the First Two Weeks Look Like
The restrictions after sclerotherapy are temporary but they stack up, so it helps to plan ahead. In the first 48 hours, wear compression stockings around the clock, take short walks, skip hot showers, and avoid any strenuous activity. During the rest of the first week, continue wearing compression during the day, keep treated skin out of the sun, and stick to walking as your main exercise. By the second week, you can gradually reintroduce moderate activity and return to normal showering, though sun protection should continue. Most people are back to their full routine within two to three weeks.
Some bruising, mild tenderness, and darkening along treated veins is normal during this period. The veins themselves may feel firm or cord-like to the touch as they close. These effects typically resolve over the following weeks to months as your body breaks down the sealed tissue.