Silsilah as-Sahihah 1635 — Healing in costus

It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The best things with which you treat yourselves are cupping and sea costus (al-qust al-bahri). Do not cause pain to your children by squeezing (their throats to treat tonsillitis)."