Dried blood on toe

Foot care
1

I was running a marathon, after I finished I noticed a really little blood blister under the nail of the big toe on my left foot. 

It had like, 1 / 1,5mm diameter, more or less.

This was in 25 of April, so 4 months have passed and the blister have moved along the growing of the nail. 

It never hurted me, while walking, cutting the nail, or even pressing the blister. 

But now, it has reached the "final" part of my nail, and it's hurting whenever I touch it or walk... Part of that dried blood blister have come off already when the nail was last cutted. 

Any ideias on what to do, how to treat it, etc?

Regards,

2

This is likely to grow out over the next few weeks. Do not cut the nail too short!

3

Yeah I've cut it out like 1 week ago, and I think I did it a little bit too short. And it was some days after that, that it began to hurt. 

Should I use any moisturizing cream or any substance like "Betadine"?

4

The less you do, the better