Dany Salameh was already ill but a blast that devastated Beirut's port three years ago aggravated his condition, leaving him dependent on a walker and feeling abandoned by authorities.

People hurt or disabled by the catastrophic explosion told AFP that Lebanon, bankrupt and politically paralysed, has failed to deliver adequate medical care, financial support or justice.

"The state forgot about us," said the soft-spoken Salameh from his apartment in a district close to the port, much of which was destroyed along with entire districts of Beirut in one of history's biggest non-nuclear explosions.

The blast on August 4, 2020 killed more than 220 people and injured at least 6,500.

Salameh was at his family home in a neighbourhood adjacent to the port when the blast threw him from one side of their rooftop terrace to the other.

Formerly a sound engineer, he had been diagnosed in 2015 with multiple sclerosis -- a lifelong condition in which a person's central nervous system is attacked by the body's own immune system.

While Salameh escaped bad physical injury in the explosion, the shock had a devastating effect on his illness. He soon found himself struggling to walk.

Vital medicine for his disease costs $140 a month, twice-yearly injections cost $1,000, and he said he needs an operation that costs $10,000.

But Salameh is unable to afford health care as he survives on family support and limited work opportunities.