Reb Asher Zelig Margolis zt’l writes that once he had a lot of pain in his throat, and the doctors recommended surgery. He came to Meron and said the entire Tehillim. While saying the Tehillim, he began coughing violently and couldn’t stop. He continued coughing until he coughed up the blood and pus blocking his throat, and he was healed.
In the winter of 5775, a woman from the Toldos Aharon community felt immense pressure on her eye, weakening her eyesight. The doctor instructed her to take a C T scan, which she did on Lag b'Omer morning. The results would come in the next day, and in the meanwhile, she traveled to Meron, where the rebbe of Toldos Aharon makes a hadlakah (bonfire). She could hardly see the hadlakah due to poor vision and cried and prayed for a yeshua. The next morning, she could see well. The doctor called that morning and told her there was dangerous swelling above the eye, and they must operate. She told him she was feeling well... And indeed, she was.
A friend who often visits Meron told me, "I have witnessed many miracles in Meron. I will tell you one story. I have children living in America. They had a young child who was developing very slowly. He was three years old but couldn't talk or control his bowels. Two miracles happened on the flight back to America: The child suddenly spoke. He told his mother that he needed to use the bathroom."
A family of talmidei chachamim heard that the head of their family was diagnosed with cancer, r'l. All men of the family traveled to Meron, studying Torah the entire way there, and in Meron, they said the entire Tehillim. The father took another test, and the doctors told him the dreaded disease had mysteriously disappeared.
Two close friends studied every morning from three o'clock a.m. until Shacharis. One of them became ill with cancer and was extremely weak. His chavrusah would visit him from time to time, and they would discuss emunah. Once, in the middle of their conversation, the friend said, "Lag b'Omer is only a month and a half away. We traveled to Meron together the past few years; let’s do it again this year." The ill man looked at him and said, "The doctors are telling me I have only two months to live. I don’t know if I will be alive when Lag b'Omer comes around." A few weeks later, he called his ill friend, "I’m buying a ticket to Eretz Yisrael today. I want to be in Meron for Lag b'Omer. Should I buy a ticket for you too? The doctors aren’t stopping you from traveling, so why shouldn't you come along?" "I think it is a good idea," the friend replied. "Order a ticket for me, too." That year Lag b'Omer was on Motzei Shabbos. As soon as Shabbos was over, they went to the tzion to daven. This occurred twenty-five years ago when the crowds weren’t as large as today. Most of the chassidim were still with their Rebbe for the hadlakah, and the tzion wasn't full, so they could get inside and daven. The ill man sat down near the tzion and poured his heart out in tefillah. He said the entire sefer Tehillim, from beginning to end. When he finished, he turned to his friend and said, "I feel that I've just removed a large stone from my heart, and I'm leaving that stone here." They returned to America. The doctors wanted to operate to save his life. When they opened his body, they couldn’t find any sign of the illness. They took a biopsy and sent it to the lab to see if any remnants of the disease remained. Nothing was there. He was entirely well. His first phone call was to his friend who encouraged him to go to Meron on Lag b'Omer. He cried tears of gratitude. His friend heard him crying into the phone and feared that he had received more negative news from the doctors. When he finally found his voice, he explained that they were tears of happiness. Both men told me the story and concluded, "Since then, we go to Meron every year, and before we leave Meron, we say, 'Reb Shimon, next year again!'"
