Lactose Intolerance - avoid all milk products?

Four years ago I had tests which indicated that I should remove wheat, milk lactose, soya and eggs from my diet.

At the time, I was told that I should stop drinking cow’s milk and stop eating cow’s cheese.

I was told that I could eat sheep’s and goat’s cheese as long as they didn’t contain egg as a preservative.

I’ve done this ever since and it did make a huge difference to my general well-being.

I was also told at the time that I could eat butter and natural yogurt.

While the effect was transforming, considering how I had been feeling, I am still prone to occasional infections in my ears. These used to be far worse.

I’ve often wondered if yogurt and butter might be the difference.

Is it true that the bad effects of lactose are eliminated by the manufacturing process of butter and yogurt, which is what I was told?

Thanks.

D.