Re: I know what's wrong with the latch but how to fix it?
Welcome to the forum!
I think there's a lot of good news in your situation. First, you're a month in and not cracked or blistered at all, which is wonderful! When a baby has a poor latch, nipple damage is likely to crop up very rapidly. The fact that you've made it to a month without seeing any implies that you do not have to worry too much that you're going to end up cracked and infected. Second, you seem to have an excellent understanding of what the problem is. Third, your baby is growing well. The biggest danger with latch problems (for the baby, anyway), is inadequate milk intake, and that's clearly not a problem for you.
Now, on to solving the problem. It's very probable that this problem will go away eventually, even if you do NOTHING. As your baby grows, he will be able to achieve a deeper latch every time because his mouth will be bigger and he will be stronger, and more able to deal with any flow speed issues without needing to compress the nipple. The fact that you know you have an oversupply, the fact that baby clicks, and the fact that he will immediately return to a nipple-compressing latch after you relatch him implies to me that he may be struggling with a fast milk flow. You're already block feeding, but I suggest an additional step of using reclined nursing positions. If you can enlist gravity to slow the milk flow, it's possible that your baby won't need to "crimp the straw" while feeding. The difference in nipple shape between breasts... That could also be a problem. It may be that the left hand nipple is inverted, or just short- both things which can prevent the nipple from being drawn back into the ideal spot on the back of the baby's tongue, underneath the soft palate. Luckily, babies grow, and the adhesions beneath the skin, which prevent a nipple from being fully elongated bu a suckling baby, usually eventually weaken and break. I suggest googling the words "nipple sandwich technique" for a description of a method for getting the maximum amount of breast into a tiny mouth, which usually helps the nipple land in the "sweet spot".
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