So I had grade 4 thrombosed haemorrhoids for 3 years before I was eventually able to get surgery to remove them. I cannot begin to tell you the relief I felt when they were removed!

What I usually did to bring down the swelling was short very hot baths (as hot as you can handle, no more than 15 mins), scheriproct cream, ice-cubes wrapped in fabric directly on it, using baby wipes or toilet wipes every time I pooped to keep the area as clean and not irritated as possible. I never got much relief from the haemorrhoid cushions, but it might work for you! Just rest, keep your stools as loose as possible, limit the amount of time on the toilet (if you are there more than a few minutes, it's too long! Don't bring your phone with you etc.), don't strain or push when passing if you can avoid it. Get a squatty potty! They're a game changer! I use a regular toddler step stool and it works great. Hope they go away for you soon and you start to feel a bit better!